China National Standards

China Subland GB Standards List


  •  China "Subland" GB Standards List:
  • Standard  Code Standard Title Standard Class Order
    GB/T 6139-2007 Subland twist drills - Technical specifications
    阶梯麻花钻 技术条件
    China National Standards
    Subland

    English PDF
    GB/T 6138.2-2007 Subland twist drills for holes prior to tapping screw threads - Part 2: The types and dimensions of Subland twist drills with Morse typer shanks
    攻丝前钻孔用阶梯麻花钻 第2部分:莫氏锥柄阶梯麻花钻的型式和尺寸
    China National Standards
    Subland

    English PDF
    GB/T 6138.1-2007 Subland twist drills for holes prior to tapping screw threads - Part 1: The types and dimensions of subland twist drills with cylindrical shanks
    攻丝前钻孔用阶梯麻花钻 第1部分:直柄阶梯麻花钻的型式和尺寸
    China National Standards
    Subland

    English PDF

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