lotus999 发表于 2020-12-15 19:36:06

ASTM B 247 - 2015 Standard Specification for Aluminum and Aluminum

ASTM B 247 - 15 Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings


admin 发表于 2020-12-27 20:22:42

谢谢您的分享,金币已奖励!
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