China National Standards

China Mechanical drawings Conventional GB Standards List

  •  China "Mechanical drawings Conventional" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 4459.4-2003 Mechanical drawings--Conventional reprensentationof springs
    机械制图 弹簧表示法    		 China National Standards
    Mechanical drawings Conventional
    English PDF
    GB/T 4459.2-2003 Mechanical drawings--Conventional representation of gears
    机械制图 齿轮表示法    		 China National Standards
    Mechanical drawings Conventional
    English PDF

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