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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 9125.1-2020 |
Fasteners for steel pipe flange joints—Part 1:PN designated 钢制管法兰连接用紧固件 第1部分：PN系列 |
China National Standards design steel pipe |
 English PDF |
| GB/T 9125.2-2020 |
Fasteners for steel pipe flange joints—Part 2：Class designated 钢制管法兰连接用紧固件 第2部分：Class系列 |
China National Standards design steel pipe |
English PDF |
| GB/T 9124.2-2019 |
Steel pipe flanges—Part 2:Class designated 钢制管法兰 第2部分：Class 系列 |
China National Standards design steel pipe |
English PDF |
| GB/T 9124.1-2019 |
Steel pipe flanges—Part 1:PN designated 钢制管法兰 第1部分：PN 系列 |
China National Standards design steel pipe |
English PDF |
| GB/T 50398-2018 |
Seamless steel pipe engineering design standard 无缝钢管工程设计标准 |
China National Standards design steel pipe |
English PDF |
| GB 50714-2011 |
Code for design of steel pipe coating workshop process 钢管涂层车间工艺设计规范 |
China National Standards design steel pipe |
English PDF |
| GB 50709-2011 |
Code for design of pipe supports in iron and steel enterprises 钢铁企业管道支架设计规范 |
China National Standards design steel pipe |
English PDF |
| GB 50754-2012 |
Code for design of steel pipe extrusion engineering 挤压钢管工程设计规范 |
China National Standards design steel pipe |
English PDF |
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