ygs67 发表于 2015-7-1 15:34:52

ASTM A506-12

ASTM A506-12 Specification for Alloy and Structural Alloy Steel, Sheet and Strip, Hot-Rolled and Cold-Rolled

admin 发表于 2015-7-2 11:35:06

谢谢您的分享,金币已奖励!
页: [1]
查看完整版本: ASTM A506-12