... machine, drilling machining, stamping machine, line cutting machine etc.4. Finishing: zinc plating, nickle plating, chrome plating, phosphating, polishing, case hardening, carburization hardening, sand ... blasting5. Testing facility: Profile Projector, Rockwell Hardness Tester, Vickers Hardness Tester, Roughness Tester, Salt Spray Test Machine, Micrometers etc ...