| 1. | Repairing technigue rules for the harbour portal crane
港口门座起重机修理技术规范 |
| 2. | Repairing technique rules for the harbour portal crane
港口门座起重机修理技术规范 |
| 3. | Valve seat grinding wheels : marking " vlvst
汽门座砂轮：统一标示vlvst |
| 4. | Specifications for the harbour portal crane
港口门座起重机技术条件 |
| 5. | Compare of service performance for two gantry mounting crane
两台高架门座起重机的使用性能比较 |
| 6. | Experimental study on wear failure of gas - valve valve - seat in engine
门座磨损失效机理实验研究 |
| 7. | Safety code for the harbour portal crane
港口门座起重机安全规程 |
| 8. | Lifting appliances - vocabulary - portal slewing cranes
门座起重机 |
| 9. | Cranes runways . cranes runways and portal cranes . currier ' s knifes
吊车滑道.吊车滑道和门座起重机.缓冲器和缓冲器装置 |
| 10. | Valve seat grinding wheel
汽门座研磨砂轮 |
