DIN 3546-1-2002
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建筑物内供水装置用截流阀.第1部分:放水阀,门阀和隔膜阀用手动活塞型门阀,截流阀和活塞的一般要求和检验.DV
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(Stopvalves for domestic water supply - Part 1: General requirements and tests for manually operated piston type gate valves, stopvalves for tapping valves, gate valves and diaphragm valves; Tec
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