| 1. | Standard for petroleum and natural gas engineering drawings 石油天然气工程制图标准 |
| 2. | Petroleum and natural gas industries - piping 石油和天然气工业.管道 |
| 3. | The rapid development of vietnam ' s petroleum and natural gas industry 迅速发展中的越南油气业 |
| 4. | Petroleum and natural gas industries - aluminium alloy drill pipe 石油和天然气工业.铝合金钻杆 |
| 5. | Petroleum and natural gas processing . management of process hazards 石油天然气加工.工艺危害管理 |
| 6. | Petroleum and natural gas industries ? ? specification for wire rope 石油天然气工业用? ?钢丝绳规范 |
| 7. | Petroleum and natural gas industries - aluminium alloy drill pipes 石油和天然气工业.铝合金钻杆 |
| 8. | Series 190 diesel engine for the petroleum and natural gas industry 石油天然气工业用190系列柴油机 |
| 9. | Petroleum and natural gas industries - shell - and - tube heat exchangers 石油和天然气工业.壳管热交换器 |
| 10. | Petroleum and natural gas industries - pipeline transportation systems 石油和天然气工业.管道输送系统 |