... Surface treatment: polished, Zinc plated, nickel plating, chrome plating, powder coating, e-coat, HDG, black anodizing. Mould designed in house ... latching machine.Machining process:Milling, drilling, threading, welding, polishing, assembly.Inspection:Coating thickness tester, roughness tester, Go/Not-go ... machining and final machining Metal frame, steel part chorme plated bright, Metal welding part