| 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. | Specifications for the harbour portal crane
港口门座起重机技术条件 |
| 4. | Safety code for the harbour portal crane
港口门座起重机安全规程 |
| 5. | Overhead travelling cranes and portal cranes with eahs : controls
桥式起重机和龙门起重机.控制装置 |
| 6. | Portal crane is primary handling device in portal work
门机金属结构的失效事故，后果往往非常严重。 |
| 7. | Cranes ; slewing cranes and portal cranes with cantilever , radii
起重机.悬臂起重机和带悬臂梁的龙门式起重机.工作半 |
| 8. | Frequent fault diagnose and repair of the turbine speed reducer in portal crane
门机蜗轮减速箱常见故障的诊断及维修 |
| 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. | Slewing portal crane
旋臂转柱起重机 |
