| Design & Manufacture: | GB/T 12237, API 6D |
| Inspection & Test: | GB/T 13927, API598 |
| Face To Face Dimension: | GB/T 12221,ASME B16.10 |
| Flange Standard: | HG/T 20592; DIN 2501; EN1092-1; ASME B16.5, JIS 10K |
| Pulp and Paper |
| Metal and Mining |
| Power Generation |
| Petrochemical industry |
| Wastewater Treatment |


