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现行 DIN 8552-3
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Joint preparation - Groove forms on copper and copper alloys - Part 3: Gas welding and gas-shielded arc welding 接头制备.铜和铜合金上的坡口形式.第3部分:气焊和气体保护电弧焊
发布日期: 2006-01-01
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发布单位或类别: 德国-德国标准化学会
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文件草稿.法兰及其接头.管道、阀门、配件和附件用指定等级的圆形法兰.第3部分:铜合金法兰;德文和英文版本prEN 1759-3:2021
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Draft Document - Flanges and their joints - Circular flanges for pipes, valves, fittings and accessories, PN designated - Part 3: Copper alloy flanges; German and English version prEN 1092-3:2021
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