... paper carton,400sets per paper carton and so on5.note:any sizes and types are aviailable6. Parts can be supplied according ... Surface Treatment:polishing,electroplate,electroless plating,electrolytic,passivation,etc.Plating Type:Nickel Plating,Tin Plating,Zinc Plating,Gold plating,Coating Black ... machine,etc.Certification:ROHS Compliant passed SGS testing elecronic component power-supply filter shell