... yellow passivation, gold passivation, galvanizing, satin, etc.2.Processing Method: cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly.3 ... ,GB,DIN,JIS,ANSI4.ISO9001-2008,SGS,ROHS certificate.5.We have a lot of years technical experiences, we ... OEM available Stock goods,free for samples.Picture:4) Factory:5) Packing:6) Company Information:7)Shipping:8. Contact information ...