松雨霞 发表于 2019-12-23 14:02:53

ASTM A312/A312M -19

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

admin 发表于 2019-12-29 20:49:20

谢谢您的分享，金币已奖励！
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