yeljiun 发表于 2016-8-30 12:07:20

ASTM A479/A479M-15

ASTM A479/A479M-15 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels

admin 发表于 2016-8-30 14:23:03

谢谢您的分享，金币已奖励!
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