China National Standards

China Drive ends hand Industry Standards English PDF List

  •  China "Drive ends hand" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 4206-2011 Drive ends for hand-and machine-operated screwdriver bits and connecting parts
    螺钉旋具头传动端和连接件    		 China Light Industry Standards
    Drive ends hand
    English PDF

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