... -2mm 3) Standard:GB/T1527-199,DIN7340 Copper Bushing/sleeve/metal pin bushingFeatures:1) name:rivets, tubular rivets, brass rivets, ... to specialize Copper Capillary, Drawn Copper Tube,Copper Tubular Rivet, Brass Tubular Rivet, Brass Tube Products (tubular rivets,needle tube, pin ... Antenna, Electric Brush, Antenna, Electric Brush, etc. Copper Bushing/sleeve/metal pin bushing for precise instruments,etc