Tube sections/crimping sleeves 1)material:brass steel aluminum 2)size:O.D1. ... -20mm 3)Technical Standard:DIN7340/GB-975 tube Tube sections/crimping sleevesFeatures:1) name:rivets, tubular rivets, brass rivets, brass pins2 ... PatternPlate, Antenna, Electric Brush, Antenna, Electric Brush, etc. Tube sections/crimping sleeves