Home / Standards / GB/T 16770.1-1997 GB/T 16770.1-1997 Solid carbide end mills with parallel shank — Part 1: Types and dimensions 整体硬质合金直柄立铣刀 第1部分:型式与尺寸 Standard Type GBT ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A