ygs67 发表于 2015-12-21 16:51:21

ASTM A1085_A1085M-15

ASTM A1085_A1085M-15 Standard Specification for Cold-Formed Welded Carbon Steel Hollow Structural Sections (HSS).

admin 发表于 2015-12-21 16:55:45

谢谢您的分享，金币已奖励!
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