China National Standards

China Covered electordes manual GB Standards List

  •  China "Covered electordes manual" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 3670-2021 Covered electordes for manual metal arc welding of copper and copper alloys
    铜及铜合金焊条    		 China National Standards
    Covered electordes manual
    English PDF

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