Full list of industrialists

Winding - Winding of electric motors - Pump winding - Industrial distributor - Electrical winding - Washing equipments - Maintenance of tools - Maintenance of cleaning equipments - Indusrial pumps maintenance - Electromechanical maintenance - Industrial maintenance - Industrial maintenance of rotatory table machines - Preventive industrial maintenance - Maintenance of machine tools - Repair of mechanical assemblies - Repair of electric motors - Motor reduction gears repair - Pumps repair - Réparation de ventilateurs

External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Grinding of splined shafts and worm - Form grinding - Profile grinding - Deep grinding - Surface grinding - Milling of gears rack-and-pinion - Milling of straight-toothed meshing gears - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Tournage 5 axes - Lathe-turning / medium series (from 1,001 to 10,000 parts) - Multifunctional latheturning - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Lathe-turning / small series (from 11 to 1,000 parts) - High-speed machining/ 3 axis / medium series (de 1001 à 10 000 parts) > 1000 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 4 axis / medium series (from 1001 to 10 000 parts) > 1000 cm3 - High-speed machining / 4 axes /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - Hard material machining

Design and manufacture of cutting tools - Design and manufacture of cutting and stamping tools - Design and manufacture of press tooling - Design and manufacturing of progressive dies - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Cutting and bending of precision metal parts - Multi-slide press cutting - Traditional press cutting - Degreasing / Cleaning / Washing - Wire EDM > Ø 0,20 - Micro-WEDM > Ø 0,3 - Laser (cutting) - Prototypes (manufacturing) - Form grinding - Crimping - Spot welding - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 4 axis /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3

Assembly (gluing, welding, riveting) - Free-cutting >100 000 parts - Free-cutting from Ø10 mm to Ø20 mm - Free-cutting: from cutting thickness Ø20 mm to Ø32 mm - Free-cutting from Ø3 mm à Ø10 mm

Methods office / Industrialization - Design and manufacture of plastic parts - Manufacturing in clean room - Industrialization of products / processes - Bi-material injection - Thermoplastic injection moulding - Thermoplastic injection in ISO 7 clean room - Prototypes (design) - Prototypes (manufacturing) - Plastic recycling - Mechanical testing and numerical simulation (vibrations, shocks, drops) - Processing of plastics

Broaching - Shafts and fluted hubs manufacturing - Worm gear sets manufacturing - Spiral bevel gear sets manufacturing - Manufacture of chain sprockets - Straight-toothed meshing gears manufacturing - Straight bevel pinions manufacturing - Helical pinions manufacturing - Timing belt pulleys manufactuing - Threading - Maintenance of pinions, gears and cogwheels - Gear grinding and toothing - Grinding of splined shafts and worm - Milling of shafts - Milling of worm gear sets - Milling of worm gear sets - Milling of gears rack-and-pinion - Milling of fluted hubs - Milling of chain sprockets - Milling of straight-toothed meshing gears - Milling of straight bevel pinions - Milling of helical pinions - Milling of timing belt pulleys

Methods office / Industrialization - Shearing - Dimensional control - Free-cutting > Ø60 mm - Free-cutting >10 000 parts - Free-cutting >50 000 parts - Free-cutting from Ø10 mm to Ø20 mm - Free-cutting: from cutting thickness Ø20 mm to Ø32 mm - Free-cutting from Ø32 mm to Ø60 mm - Free-cutting : from cutting thickness > 100 mm à 200 mm - Free-cutting: from cutting thickness > 50 mm to 100 mm - Free-cutting: from cutting thickness > to 2 mm à 50 mm - Free-cutting: from cutting thickness 0,2 to 2 mm - Threading - Contract production - Centerless grinding - External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Resistance welding - Tapping - Tournage 4 axes - Tournage 5 axes - Lathe-turning / large series (> 10,000 parts) - Tournage Ø de 20 à 200 mm - Tube processing - Base metal machining

Assembly (gluing, welding, riveting) - Broaching - Mechanical engineering office - Bending - Dimensional control - Wire EDM > Ø 0,20 - Cutting tools manufacturing - Manufacturing of tools for cutting - Shafts and fluted hubs manufacturing - Manufacturing of assemblies and sub-assemblies - Manufacture of chain sprockets - Straight-toothed meshing gears manufacturing - Manufacture of punch-die - Manufacture of sub-assemblies and assemblies for special machines - Large size milling - Horizontal milling - Proto milling - Serial milling - Vertical milling - Mechanical engraving - Laser (engraving and marking) - Marquage par micro percussion - General mechanics - General precision mechanics - Mechanical welding - Knurling - Assembly of machining - Repair of mechanical assemblies - Traditional welding / brazing - Aluminium welding - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Tournage 5 axes - Multifunctional latheturning - Hard material machining - Base metal machining

Mechanical engineering office - Industrial design office - Methods office / Industrialization - Design and manufacturing of gauges - Design and manufacture of special machines - Design and manufacturing of checking fixtures - Design and manufacturing of checking fixtures - Wire EDM > Ø 0,20 - Micro-WEDM < Ø 0,3 - Additive manufacturing (printing of other materials) - Manufacturing of assemblies and sub-assemblies - Manufacture of press tools - Vertical milling - Control gauges - General precision mechanics - Metrology (laboratory) - Micro machining - Assembly of machining - Polishing - Surface grinding - Tournage 2 axes - Tournage 3 axes - Tournage Ø de 20 à 200 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /small series (from 10 to 1000 parts) > 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3

Machining tool sharpening - Metallurgical analysis - Mechanical engineering office - Methods office / Industrialization - Design and manufacturing of reamer - Design and manufacture of cutting tools - Design and manufacture of cutting and stamping tools - Design and manufacture of wire tools - Design and manufacture of precision tooling - Design and manufacture of press tooling - Design and manufacturing of complex products tooling - Design and manufacture of boiler making tooling - Design and manufacture of cutting tools - Design and manufacturing of twisted drill - Design and manufacturing of special drill - Design and manufacturing of form end mills - Electrostriction - Cutting tools manufacturing - Marking tools manufacturing - Manufacture of foundry tools - Manufacture of punch-die - Powder metallurgy - Polishing - Polishing (grinding) - Centerless grinding - External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Gear grinding and toothing - Form grinding - Profile grinding - Deep grinding - Surface grinding - Milling of straight-toothed meshing gears - Milling of straight bevel pinions - High-speed machining / 5 axis /large series (>10 000 parts) < 350 cm3 - High-speed machining / 5 axis /large series (>10 000 parts) > 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - Hard material machining - Precious metal machining

Mechanical engineering office - Design and manufacture of cutting tools - Design and manufacture of precision tooling - Design and manufacturing of progressive dies - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Micro-WEDM - Micro-WEDM < Ø 0,3 - Micro-WEDM > Ø 0,3 - Sinker EDM - Manufacturer of watchmaking tools / Jewelry - Manufacturer of special machines - Cutting tools manufacturing - Manufacturing of tools for cutting - Manufacturing of non implantable medical devices - Mechanical manufacturing around electronics - Proto milling - Serial milling - Vertical milling - Laser (engraving and marking) - Special assembly machines (auto / semi-auto) - Maintenance of special machines - General precision mechanics - Micromechanics - Prototypes (small series manufacturing) - External cynlindrical grinding - Surface grinding - Retrofit for tools - Retrofitting of tools - Tournage Ø de 20 à 200 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 3 axes /small series (from 10 to 1000 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 parts) < 350 cm3 - High-speed machining / 5 axis /small series (from 10 to 1000 pièces) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining / 5 axis /prototye and unit (< 10 parts) between 350 cm3 and 1000 cm3

Design office (implementation of CAD solutions) - Plated steel boilermaking - Aluminium boilermaking - Stainless steel boilermaking - Design and manufacture of equipment for boiler making - Design and manufacture of conveyors - Design and manufacture of special machines - Design and manufacture of grippers - Design and manufacture of hoppers - Water jet cutting: thickness > to 120 mm - Water jet cutting: small thickness from 0,1 to 20 mm - Water jet cutting: high thickness from 21 to 120 mm - Manufacturer of special machines - Manufacturing of assemblies and sub-assemblies - Laser (welding) - Industrial maintenance - Mechanical welding - Metalwork - Trade of industrial products - Industrial locksmithing - Aluminium welding - Sealed welding - Welding under qualification - Industrial sheet metal work - Food piping - Low pressure industrial pipe and tube - Medium pressure industrial piping - Wine industry piping

Assembly (gluing, welding, riveting) - Assembly / Wiring - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume < 1cm3 - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume < 5cm3 - Process automation - Automated loading and unloading for production machines - Industrial automation - Design office (implementation of CAD solutions) - Robotic design office - Automation design office - Electrical design office - Mechanical engineering office - Electrical cabinet wiring - Design and manufacture of conveyors - Design and manufacture of special machines - Design and manufacture of grippers - Safety devices design and manufacturing - Design and manufacture of robotic solutions - Design and manufacturing of machine vision projects - Etching - Industrial distributor - Pressing / Pressing / Riveting / Deformation - Equipments for assembly robots - Study and realization of robotic islands - Manufacturer of packaging equipment - Manufacturer of special machines - Manufacturing of assemblies and sub-assemblies - Manufacture of sub-assemblies and assemblies for special machines - Horizontal milling - Industrialization of automated mechanical assembly processes - Industrialization of products / processes - Installation and adjustment of special machines - Laser (source integrator) - Special assembly machines (auto / semi-auto) - Metrology with contact (rolling) - Performance - Contactless metrology (vision probe, optical sensor, laser scanner) - Performance - Programming of automats - Programming robots and cobots - Retrofit for special machines - Collaborative robots - Camera control system - Robotic vision system - Tournage 2 axes - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - Base metal machining - Machine vision or robot-vision system

Process automation - Industrial automation - Winding - Winding of electric motors - Pump winding - Automation design office - Electrical design office - Mechanical engineering office - Industrial distributor - Electrical winding - Industrialization of automated mechanical assembly processes - Industrial electrical installation - Maintenance of electronic products - Electromechanical maintenance - Industrial maintenance - Curative industrial maintenance - Industrial maintenance of rotatory table machines - Predictive industrial maintenance - Preventive industrial maintenance - Réparation d'agitateurs - Repair of mechanical assemblies - Electronic cards repair - Repair of electric motors - Motor reduction gears repair - Pumps repair - Geared pumps repair - Réparation de ventilateurs - Rétrofit d'automates - Retrofit for special machines

Machining tool sharpening - Brazing - Mechanical pickling (deburring) - Cutting of flexible materials - Cutting and bending of precision metal parts - Fine cutting - Traditional press cutting - Pressing / Pressing / Riveting / Deformation - Automotive equipment manufacturer - Manufacturer of watchmaking tools / Jewelry - Manufacturer of special machine tools - Manufacture of punch-die - Threading - Horizontal milling - Proto milling - Serial milling - Maintenance of tools - General precision mechanics - Knurling - External cynlindrical grinding - Internal cylindrical grinding - Radius cylindrical grinding - Form grinding - Profile grinding - Surface grinding

Co-development of products - Design and manufacture of cutting and stamping tools - Conception et fabrication de moules métalliques - Design and manufacture of automotive products - Cutting and bending of high precision metal parts - Cutting and bending of precision metal parts - Fine cutting - Multi-slide press cutting - Cutting on automatic press machine - Traditional press cutting - Cutting, bending, rolling, high precision stamping - Stamping - Automotive equipment manufacturer - Manufacturing of tools for cutting - Manufacture of press tools - Forming - Industrialization of automated mechanical assembly processes - Industrialization of assembly processes by welding techniques - Industrialization of products / processes - General precision mechanics - Metrology with contact (rolling) - Internal use - Three dimensionnal measuring machines (manufacturer) - Implementation of P.H.M. and prognosis solutions with A.I. supports - Prototypes (small series manufacturing) - Prototypes (manufacturing) - Crimping - Robotic welding - Spot welding - Resistance welding - Overmolding

Wire EDM > Ø 0,10 - Wire EDM > Ø 0,20 - Sinker EDM - Manufacturing of assemblies and sub-assemblies - Proto milling - Serial milling - Control gauges - Laser (engraving and marking) - General precision mechanics - Micro machining - Microdrilling - Assembly of machining - Drilling - Prototypes (small series manufacturing) - Prototypes (manufacturing) - Prototypes (all metals) - Centerless grinding - External cynlindrical grinding - Surface grinding - Tapping - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Tournage 5 axes - Tournage Ø de 20 à 200 mm - Tournage Ø de 201 à 400 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - High-speed machining / 3 axis /prototype and unit (< 10 parts) < 350 cm3 - High-speed machining / 3 axis /prototype and unit (< 10 parts) > 1000 cm3 - High-speed machining/ 4 axis /prototype and unit (< 10 pièces) < 350 cm3 - Usinage / 4 axes /prototype and unit (< 10 parts) > 1000 cm3 - Usinage / 4 axis /prototype and unit (< 10 parts) between 350 cm3 and 1000 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - High-speed machining/ 5 axis /prototype and unit (< 10 parts) > 1000 cm3 - Base metal machining

Electronic design office (hardware and firmware) - Design and development of mobile applications - Design and manufacture of printed circuits - Design and manufacture of integrated circuits - Design and development of equipment, services and embedded software for public transport ticketing - Manufacture of electronic cards - Industrial computing (system integration / software) - Human/machine interface (HMI) - IOT - Connected objects - Assembly of SMD components - Assembly of printed circuits - Prototype (electronics) - Electronic cards repair - Reproduction of electronic cards - Retrofitting of electronic boards and sub-assemblies - RFID (Radio Frequency IDentification) - SMD technology - Traditional technology (wire components) - Component assembly technologies

Free-cutting < Ø3 mm - Free-cutting >10 000 parts - Free-cutting >50 000 parts - Free-cutting from 10 to 1000 parts - Free-cutting from 1001 to 10 000 pièces - Free-cutting from Ø10 mm to Ø20 mm - Free-cutting from Ø3 mm à Ø10 mm - Prototypical and unit free-cutting < 10 parts) - Precious metal machining

Plated steel boilermaking - Alloy boilermaking - Aluminium boilermaking - Stainless steel boilermaking - Bending - High-precision bending - Shearing - Laser (cutting) - Laser (subcontracting) - Lifting and heavy handling - Industrial maintenance - Metalwork - Painting (lacquering) - Drilling - Folding - Plasma Transferred Arc - Rechargement TIG - Rolling - Industrial locksmithing - Crimping - Aluminium welding - Sealed welding - Welding under qualification - Tapping - Powder coating - Tube processing - Ventilation piping - Food piping - Low pressure industrial pipe and tube - High pressure industrial piping - High temperature industrial piping - Medium pressure industrial piping - Wine industry piping

Electroplating (silver plating) - Electrolytic metal deposition (copper plating) - Electrolytic metal deposition (gold plating) - Electrolytic metal deposition (palladium) - Electrolytic metal deposition (rhodium) - Electroplating

Hardness testing - Assembly (gluing, welding, riveting) - Assembly / Wiring - Assembly of sub-assemblies / Electrical / electronic assemblies - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 5cm3 - Mechanical engineering office - Molding design office - Methods office / Industrialization - Design and manufacture of cutting and stamping tools - Design and manufacture of precision tooling - Design and manufacture of press tooling - Design and manufacturing of progressive dies - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Design and manufacture of mold - Design and manufacture of springs - Contacting by crimping - Contacting by welding - Multi-slide press cutting - Traditional press cutting - Degreasing / Cleaning / Washing - Tribo-finishing deburring - Wire EDM <Ø 0,10 - Non-destructive testing equipments calibration - Calibration of measuring equipment - Dimensional calibration - Flat spring manufacturer - Manufacturing of tools for cutting - Manufacture of press tools - Strip milling - Industrialization of products / processes - Technology integrator - Micro slitting - Prototypes (design) - Prototypes (manufacturing) - Slitting - Retrofit for tools - Overmolding - Metal and plastic-based overmoulding - Vacuum heat treatment

Hardness testing - Assembly (gluing, welding, riveting) - Assembly / Wiring - Assembly of sub-assemblies / Electrical / electronic assemblies - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume > 5cm3 - Mechanical engineering office - Molding design office - Methods office / Industrialization - Design and manufacture of cutting tools - Design and manufacture of cutting and stamping tools - Design and manufacturing of rework tools - Conception et fabrication d’outils suisses - Design and manufacture of mold - Design and manufacture of springs - Contacting by crimping - Contacting by welding - Multi-slide press cutting - Traditional press cutting - Wire EDM <Ø 0,10 - Stamping - Non-destructive testing equipments calibration - Calibration of measuring equipment - Dimensional calibration - Flat spring manufacturer - Manufacturing of tools for cutting - Manufacture of press tools - Manufacturing of tools for plastic injection - Industrialization of automated mechanical assembly processes - Industrialization of assembly processes by welding techniques - Industrialization of products / processes - Technology integrator - Laser (welding) - Prototypes (design) - Prototypes (manufacturing) - Retrofit for tools - Overmolding - Camera control system

Chemical conversion (anodizing) - Chemical Conversion (Stainless Steel Passivation) - Chemical pickling (deoxidation) - Mechanical pickling (deburring) - Mechanical pickling (bead blasting) - Mechanical stripping (sandblasting) - Mechanical stripping (tumbling) - Mechanical pickling (tribofinishing) - Degreasing / Cleaning / Washing - Brilliant deburring - Tribo-finishing deburring - Microblasting - Passivation - Vacuum heat treatment - Cryogenic hardening

Assembly / Wiring - Process automation - Industrial automation - Automation design office - Electrical cabinet wiring - Design and manufacture of special camera inspection machines - Design and manufacture of robotic solutions - Electrical studies on CAD - Study and realization of robotic islands - Installation and adjustment of special machines - Technology integrator - Special assembly machines (auto / semi-auto) - Programming of automats

Methods office / Industrialization - Wire EDM > Ø 0,20 - Manufacture of punch-die - Manufacture of sub-assemblies and assemblies for special machines - Mechanical manufacturing around electronics - Proto milling - Serial milling - Industrialization of products / processes - General precision mechanics - Prototypes (manufacturing) - Prototypes (all metals) - Surface grinding - Tournage 2 axes - Tournage 3 axes - Tournage 4 axes - Lathe-turning / medium series (from 1,001 to 10,000 parts) - Tournage Ø de 20 à 200 mm - Lathe-turning / small series (from 11 to 1,000 parts) - Prototypical and unit latheturning (< 10 parts) - Usinage / 5 axes / medium series (de 1001 à 10 000 parts) < 350 cm3 - High-speed machining/ 5 axis /prototyp and unit (< 10 parts) < 350 cm3 - Base metal machining

Assembly (gluing, welding, riveting) - Plated steel boilermaking - Aluminium boilermaking - Design and manufacture of road signage - Mechanical pickling (shot blasting) - Lacquering - Laser (cutting) - Laser (testing) - Laser (subcontracting) - Mechanical welding - Painting (lacquering) - Painting (plastification) - Industrial paint - Liquid paint - Liquid spray paint - Powder painting (epoxy / electrostatic) - Painting on aluminium foundry, cast iron, steels - Folding - Sandblasting - Industrial locksmithing - Aluminium welding - Welding under qualification - Powder coating

Packaging design office - Design and manufacture of thermoforming mold - Particle contamination analysis - Molded Interconnected Device (MID) - Engineering plastics thermoforming performance - Thermoforming of technical materials - Thin film thermoforming - High thickness thermoforming - High pressure thermoforming - Industrial thermoforming - Pressure under thermoforming - Twinsheet thermoforming - Vacuum thermoforming - Processing of plastics - Polymer machining

Air abrasive blast cleaning - Plated steel boilermaking - Aluminium boilermaking - Stainless steel boilermaking - Laser (cutting) - Mechanical welding - Micro-cutting - Liquid spray paint - Prototypes (design) - Prototypes (manufacturing) - Industrial locksmithing - Traditional welding / brazing - Spot welding - Industrial sheet metal work - Base metal machining

Regulatory Affairs - Assembly of sub-assemblies, electromechanical, mechatronic, mechanical assemblies with a volume < 1cm3 - Process automation - Medical device design office - Methods office / Industrialization - Marketing of non implantable medical devices - Design of non implantable medical devices - Design and manufacturing of medical devices (class 1) - Design and manufacturing of medical devices (class 2) - Chemical pickling (electro-polishing) - Mechanical pickling (deburring) - Mechanical pickling (polishing) - Free-cutting: from cutting thickness 0,2 to 2 mm - Degreasing / Cleaning / Washing / (grey room) - Deburring / Emerging / Grinding - Packaging (clean room) - Packaging (grey room) - Pressing / Pressing / Riveting / Deformation - Climatic and ageing testing (performance) - Mechanical and fatigue testing (internal use) - Manufacturing of medical devices (class 2) - Manufacturing of medical devices (ISO 8 room) - Special assembly machines (auto / semi-auto) - Special machines for shaping by material removal - Metrology (laboratory) - Micro machining - Micro screw-cutting - Micromechanics - Nitinol shaping - Polishing - Prototypes (design) - Prototypes (medical devices) - Centerless grinding - Profile grinding - Straightening - Reverse engineering - Overmolding - Mechanical resistance tests - Heat treatment in a tempering oven