killer007 发表于 2017-10-16 11:16:17

ASME B16.40-2013 Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas

ASME B16.40-2013 Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Systems




myyeh 发表于 2017-10-16 18:50:54

謝謝分享--------------------:

admin 发表于 2017-10-16 19:44:53


谢谢您的分享,金币已奖励!

jlwuli 发表于 2018-1-30 22:37:08

以前怎么没发现呢，正好需要。谢谢。
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