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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 37558-2019 |
preliminary heat treatment of heavy steel forgings 大型锻钢件的锻后热处理 |
China National Standards preliminary |
 English PDF |
| GB/T 27933-2011 |
preliminary cost estimation of post-earthquake rehabilitation of engineering structures 震后恢复重建工程资金初评估 |
China National Standards preliminary |
English PDF |
| GB/T 5009.166-2003 |
preliminary test of resin and it’s products used as food packaging materials 食品包装用树脂及其制品的预试验 |
China National Standards preliminary |
English PDF |
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