| 1. | Metal tube heater for refrigerator and exposing cabinet 冰箱展示柜用管状加热器 |
| 2. | Metal tube heater for industry or other daily used 工业用加热管及其它日用加热管 |
| 3. | Metal tube heater for electric stove and microwave oven 电烤箱微波炉用管状加热器 |
| 4. | Ventilation equipment ; joints for metal tubes and fittings 通风设备.金属管件和管接头的连接 |
| 5. | Simulation and experiment on horizontal metal tube rotameter 水平式金属管浮子流量计的仿真与实验 |
| 6. | Metal tubes - hydrostatic pressure testing 金属管液压试验方法 |
| 7. | Metal tubes - hydrostatic pressure testing 金属管液压试验方法 |
| 8. | Welding of carbon - steel , stainless - steel and nonferrous - metal tube 普碳钢,不锈钢,有色金属管焊接。 |
| 9. | Metal tube heater for water heater 热水器用金属管状加热器 |
| 10. | Metal tube heater for washing machine 洗衣机用管状加热器 |