... 3) Standard: GB/T1527-199,DIN7340 copper tube fittin Copper tubes bushing Brass cutting-tubes Tube spacers Features:1) name:rivets ... , tubular rivets, brass rivets, brass pins,2) material:brass, copper ... company is a manufacturer to specialize Copper Capillary, Drawn Copper Tube,Copper Tubular Rivet, Brass Tubular Rivet, Brass ...