Home / Standards / GB 10951-89 GB 10951-89 Hardmetal (Carbide) — Tapered Helical Flute End Mills with Taper Shank 硬质合金 斜齿锥柄立铣刀 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A