Cart:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 31032-2023 |
Steel pipeline welding and acceptance {译} 钢质管道焊接及验收 |
China National Standards Steel pipeline welding |
 English PDF |
| GB/T 31032-2014 |
Welding and acceptance standard for steel pipings and pipelines 钢质管道焊接及验收 |
China National Standards Steel pipeline welding |
English PDF |
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