China National Standards

China 1:Seamless GB Standards List

  •  China "1:Seamless" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 4437.1-2000 Aluminium and aluminium alloy extruded tubes--Part 1:Seamless tubes
    铝及铝合金热挤压管 第一部分:无缝圆管    		 China National Standards
    1:Seamless
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