China National Standards

China Timekeeping instruments Industry Standards English PDF List


  •  China "Timekeeping instruments " Industry Standards English PDF List:
  • Standard  Code Standard Title Standard Class Order
    QB/T 2267-2015 Limits and fits for Timekeeping instruments. Standard tolerance value of inserted middle tolerance grade for nominal size up to 18 mm
    计时仪器用极限与配合 公称尺寸至18 mm插入中间公差等级的标准公差数值
    China Light Industry Standards
    Timekeeping instruments

    English PDF
    QB/T 2266-2012 Tolerance zones and fits for holes and shafts size up to 1mm for Timekeeping instruments
    计时仪器用极限与配合 尺寸至1mm孔、轴公差带与配合
    China Light Industry Standards
    Timekeeping instruments

    English PDF
    QB/T 2899-2007 Timekeeping instruments. Conditions for carrying out checks
    计时仪器 辐射发光涂层检验条件
    China Light Industry Standards
    Timekeeping instruments

    English PDF

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