moolea 发表于 2017-8-17 20:31:17

ASTM A356-16 Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walle

ASTM A356-16 Standard Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines

admin 发表于 2017-8-21 18:30:17

谢谢您的分享,金币已奖励!
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