... metal OEM Material:stainless steel surface treatment 1)Key specification Material: steel color:black2) Description: ... tempered,tempering,carburizing,nitriding,carbonitriding and so on.6.Surface Treatment:Include plating of Ni,Cr3+,Zn-Ni,Dacromet,No ... ISO9001:2000&TS16949&RoHS 5)Company info:Jademetal have many precision machines (stamping machine, welding machinery,CNC maching workshop,tooling ...