yuyanglgx 发表于 2015-12-21 16:17:34

ASTM A234-2015 EN最新版


ASTM A234/A234M-15 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service



admin 发表于 2015-12-21 16:55:26

谢谢您的分享，金币已奖励!
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