ygs67 发表于 2017-12-10 18:12:06

ASTM D6386-16a

ASTM D6386-16a Standard Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surface

admin 发表于 2017-12-12 16:38:36

谢谢您的分享，金币已奖励!
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