nbkxhwd@163.com 发表于 2020-7-2 11:45:33

BS 5163 Valves for waterworks purposes

BS 5163 Valves for waterworks purposes —
Part 1: Predominantly key-operated cast iron gate valves — Code of practice

Part 2: Stem caps for use on isolating valves and associated water control apparatus — Specification


admin 发表于 2020-7-6 12:02:09

谢谢您的分享,金币已奖励!
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