China National Standards

China Screwdriver bits hexagon Industry Standards English PDF List

  •  China "Screwdriver bits hexagon" Industry Standards English PDF List:
    • Standard  Code Standard Title Standard Class Order
    QB/T 4209-2011 Screwdriver bits for hexagon socket screws
    内六角螺钉旋具头    		 China Light Industry Standards
    Screwdriver bits hexagon
    English PDF

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