OEM metal spining parts 1.Material:Steel 2.Process:flow forming. 3.Finish with white ... welding,progression die processing,grinding,riveting,etc.2.Material: stainless steel, brass, copper, aluminum, iron(SGCC,SPCC,SECC),etc. ... 6. Industries:Funiture hardware, electronic hardware,industry control equipment,metal processing machinery parts,communication equipment,security equipment,medical equipment, ...