... years experience in fastener feild Name: Red copper coupling ;Copper coupling ; Coupling red copper Ability for the material of this kind ... finish: ElectroplateZinc plated(while,colour,dacroment),Nickel plated,copper plated,gold plated,chrome(3+Rohs &6+ ) ... have our own way to supply you the high quality products with lowest price anddelivery on time ... you couldavoid lots of risks. Red copper coupling