... fastener as required. Good quality, professional teamwork, prompts communication service. Our features: 1) Equipment: We own Stamping machines, ... , Heat treatment, Black oxid; 4) Standard/ specification: OEM service as per customers' requests, with in-house tooling design & ... , Sault spray testing machine, Hardness tester 6) OEM/ODM service as per customer’s requests, and can produce any metal ...