整体硬质合金直柄麻花钻 第2部分:2°斜削平直柄麻花钻型式与尺寸
Solid carbide twist drills with parallel shank Part2: The types and dimensions for parallel shank twist drills with 2°anguar fiants
2010-12-23
JB/T 12980-2016
整体硬质合金深孔内冷却超长直柄麻花钻
Solid carbide parallel shank twist drill with ex-long flutes and internal coolant