News
| China's oil reserves reach 3.69 billion tons | Dongfanglong | 2022-09-27 |
| Digital transformation fuels energy industry | Dongfanglong | 2022-08-29 |
| Output of China's major shale gas field hits recor... | Dongfanglong | 2022-07-31 |
| In Shanxi, coal-bed methane gets a boost | Dongfanglong | 2022-06-29 |
| DFL 5CT 0837 CAN PROVIDE | Dongfanglong | 2022-05-30 |
| China's Daqing Oilfield output tops 10 million ton... | Dongfanglong | 2022-04-28 |
| China's largest oil-and-gas field sees record-high... | Dongfanglong | 2022-03-27 |
| Henan Dongfanglong Machine Manufacture Co., Ltd. | Dongfanglong | 2022-02-27 |
| Casing Coupling,Tubing Coupling,Pup Joint | Dongfanglong | 2022-01-25 |
| Merry Christmas andHappy New Year | Dongfanglong | 2021-12-23 |
