FZKER 发表于 2018-5-23 16:45:59

ASTM A572/A572M-2018

ASTM A572 A572M-2018 Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel

admin 发表于 2018-5-25 10:49:36

谢谢您的分享，金币已奖励!
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查看完整版本: ASTM A572/A572M-2018