已发布 ASTM C1438与C1439e1

[only8622]

请各位大哥有这类标准规范

Standard Specification for Latex and Powder Polymer Modifiers for Hydraulic Cement Concrete and Mortar

ASTM C1438-1999

ASTM C1439e1-1999



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https://www.drymt.com/threads/59233/

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