Metal parts processing 1.Iron,stainlesssteel 2.Nonstandard,onrequest 3.Precision special-shaped parts Metal parts processingHENGKO Powder Metallurgy Co., Ltd. Powder metallurgy products / PIM ... ; cam , metal buttons, spherical oil bearings, bushings, bushing; copier parts, printer parts, automotive, electronics, office equipment, medical equipment, environmental protection and filtration ...