ygs67 发表于 2016-1-4 09:59:47

ASTM C641-09

ASTM C641-09 Standard Test Method for Iron Staining Materials in Lightweight Concrete Aggregates

admin 发表于 2016-1-4 18:53:00

谢谢您的分享，金币已奖励！
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查看完整版本: ASTM C641-09