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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 19812.5-2019 |
Plastic equipment for water saving irrigation—Part 5：Sub-surface drip irrigation pipe 塑料节水灌溉器材 第5部分：地埋式滴灌管 |
China National Standards 5：Sub |
 English PDF |
| GB/T 21412.15-2017 |
Petroleum and natural gas industries—Design and operation of subsea production systems—Part15：Subsea structures and manifolds 石油天然气工业 水下生产系统的设计和操作 第15部分：水下结构物及管汇 |
China National Standards 5：Sub |
English PDF |
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