China National Standards

China welding，cutting GB Standards List

  •  China "welding，cutting" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 39389-2020 Plastic composite hose for gas welding，cutting and allied processes
    气体焊接、切割和类似作业用复合塑料软管    		 China National Standards
    welding，cutting
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