松雨霞 发表于 2018-10-24 10:45:09

ASTM A312/A312M -18

Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes


admin 发表于 2018-10-28 11:31:03

谢谢您的分享，金币已奖励!

jim090201 发表于 2018-11-26 17:39:42

感謝前輩的分享ASTM A312-18
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