... 1,Material: steel,stainless steel,aluminium, brass 2,customized sureface treatment 3,High QC ... , SS316, SS416, SS4202. Steel:C45(K1045), C46(K1046),C203. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), ... passivation, gold passivation, galvanizing, satin, etc.Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding and assemblyAdvantages 1. ...