China National Standards

China generatrix GB Standards List

  •  China "generatrix" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 16848-1997 Accuracy of double enveloping worm gearing withstraight line generatrix
    直廓环面蜗杆、蜗轮精度    		 China National Standards
    generatrix
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