ASTM C131 C131M-20 Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact i

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关键词: ASTM   C131   C131M   20   Resistance

标准简介

ASTM C131 C131M-20 Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine
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