| 1. | Building hardware ; spring hinges for doors , double action 建筑五金.双动门用弹簧门枢 |
| 2. | China first 31 . 5 mn horizontal double - action copper extrusion line 卧式双动铜挤压生产线 |
| 3. | Triple tube rigid type rotary corer 三重管双动回转取土器 |
| 4. | Four column oil press Y24z120a四柱双动油压机 |
| 5. | Building site equipment . double acting adjustable metallic stabilizers of class 1 施工现场设备. 1类双动可调金属支脚 |
| 6. | Machining process for main piston of 100 mn double - action aluminium extrusion press 双动铝挤压机主柱塞的机械加工工艺 |
| 7. | Study on the cooling effects upon the container of 40 mn double - action extrusion press 双动铜挤压机挤压筒冷却效应研究 |
| 8. | Dual - powered trolley bus 双动源无轨电车 |
| 9. | Dao double action only 纯双动扳机 |
| 10. | Double motion agitator 双动搅拌器 |