1 Materials and components GR1,GR2,GR3,GR4,GR5,GR7,GR23,GR9,6AL-4V-2Sn 2 Specifications No.dia.mmlengthmmlengthmm88030016±0.151000300088030028±0.1510003000880300310±0.1510002000880300412±0. 210002000880300515±0.210002000880300620±0.210002000880300730±0.310001500880300850±0.310001500880300960±0.310001500880301070±0.310001500