... than 20 years experience in special fastener field Name: copper pipe fitting Ability for the material of this kind of ... 36,Gr.58,1010,1015,1016,1020,1045,etc Alloy steel 4130,4140,G51150,etc Stainless steel 201,202 ... finish: Electroplate Zinc plated(while,colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) plated ... so that you couldavoid lots of risks. copper pipe fitting