China National Standards

China Hexalobular internal driving GB Standards List

  •  China "Hexalobular internal driving" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 6188-2017 Hexalobular internal driving feature for bolts and screws
    螺栓和螺钉用内六角花形    		 China National Standards
    Hexalobular internal driving
    English PDF
    GB/T 6188-2008 Hexalobular internal driving feature for bolts and screws
    螺栓和螺钉用内六角花形    		 China National Standards
    Hexalobular internal driving
    English PDF

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