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| Chinese National Standard Category: Chemical machinery and equipment parts |
| English Title: | Welding neck flange manholes with davit to vertical cover |
| Chinese Title: | 垂直吊盖带颈对焊法兰人孔 |
| Standard No.: | HG/T 21521-2014 |
| Category No.: | G91 |
| Issued by: | Ministry of Industry and Information Technology |
| Issued on: | 2014-07-09 |
| Implemented on: | 2014-11-1 |
| Status: | valid |
| Superseded by: | |
| Superseded on: | |
| Abolished on: | |
| Superseding: | HG/T 21521-2005 Welding Neck Flange Manholes with Davit to Vertical Cover |
| Word Count: | 2000 words |
| Similar Standards: | GB/T 29465-2023 HG/T 21600-2014 HG/T 21521-2014 HG/T 21598-2014 HG/T 21530-2014 HG/T 21532-2014 HG/T 21602-2014 HG/T 21523-2014 HG/T 21524-2014 HG/T 21516-2014 HG/T 21529-2014 HG/T 21528-2014 HG/T 21599-2014 HG/T 21518-2014 HG/T 21534-2014 HG/T 21603-2014 HG/T 21520-2014 HG/T 21519-2014 HG/T 21531-2014 HG/T 21535-2014 |
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