shukesan 发表于 2021-6-28 17:12
ASME B16.5-2020 清晰版
(Revision of ASME B16.5-2017)
Pipe Flanges and Flanged Fittings NPS ½ Throug ...
shukesan 发表于 2021-6-28 17:12
ASME B16.5-2020 清晰版
(Revision of ASME B16.5-2017)
Pipe Flanges and Flanged Fittings NPS ½ Throug ...
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