China National Standards

China fittings—Copper GB Standards List

  •  China "fittings—Copper" GB Standards List:
    • Standard  Code Standard Title Standard Class Order
    GB/T 31069-2015 Plumbing fittings—Copper pipe fittings
    水暖管道配件 铜管路连接件    		 China National Standards
    fittings—Copper
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