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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 33863.13-2021 |
OPC unified architecture—Part 13: aggregates OPC统一架构 第13部分：聚合 |
China National Standards aggregates |
 English PDF |
| GB/T 17431.2-2010 |
Lightweight aggregates and its test methods - Part 2: Test methods for lightweight aggregates 轻集料及其试验方法 第2部分：轻集料试验方法 |
China National Standards aggregates |
English PDF |
| GB/T 17431.1-2010 |
Lightweight aggregates and its test methods - Part 1：Lightweight aggregates 轻集料及其试验方法 第1部分：轻集料 |
China National Standards aggregates |
English PDF |
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