松雨霞 发表于 2018-10-24 10:40:39

ASTM A234/A234M -18a

Standard Specification for
Piping Fittings of Wrought Carbon Steel and Alloy Steel for
Moderate and High Temperature Service


jim090201 发表于 2018-10-26 15:48:19

謝謝前輩的分享ASTM A234-18a

admin 发表于 2018-10-28 11:30:59

谢谢您的分享，金币已奖励!
页: [1]
查看完整版本: ASTM A234/A234M -18a