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hgundas 发表于 2019-12-2 17:32:01

BS EN 12266-1:2012 Industrial valves — Testing of metallic valves

BS EN 12266-1:2012
Industrial valves — Testing of
metallic valves
Part 1: Pressure tests, test procedures
and acceptance criteria — Mandatory
requirements

admin 发表于 2019-12-3 10:06:35

谢谢您的分享，金币已奖励！

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