China National Standards

China polygonal Industry Standards English PDF List

  •  China "polygonal" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    JB/T 13925-2020 Detection method of polygonal shank with flange contact surface {译}
    带有法兰接触面的多棱锥柄检测方法    		 China Machinery Industry Standards
    polygonal
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