... parts: 1. tolerance: +/-0.01mm 2. OEM orders welcomed. 3. 1 week sample for stamping 4. 14 years specialized OEM ... copper turning parts:Material: brass ,steel, Iron, copper, ... machining, cold formingMain products: stamping parts, metal stamping, stamped parts,stamping, metal stamping parts, stamped metal partsEquipment: punching machine, ...