... than 20 years experience in special fastener field Name: copper pipe fitting Ability for the material of this kind of ... fitting: Grade 3.6,4.6,4.8,5.6, ... for the surface finish: Electroplate Zinc plated(while,colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) plated, ... for exporting so that you couldavoid lots of risks. copper pipe fitting