| 1. | The pipes and fittings lined with metal meshed - ptfe 金属网聚四氟乙烯复合管与管件 |
| 2. | Steel framed polyethylene plastic pipes for industry 工业用钢骨架聚乙烯塑料复合管 |
| 3. | Ultrasonic metal welding of aluminum - plastics composite tube 铝塑复合管的超声金属焊接 |
| 4. | Steel reinforced polyethylene plastic pipes for water supply 给水用钢骨架聚乙烯塑料复合管 |
| 5. | Aluminum plastics pp - r aluminum - plastics compound tube 铝塑复合管系列 |
| 6. | Outer layer thermo - fusion polyolefin aluminum polyolefin composite pipe 外层熔接型铝塑复合管 |
| 7. | Application of composite steel skeleton reinforced plastic pipe 钢骨架增强塑料复合管及其应用 |
| 8. | Fitting of steel framed polyethylene plastic pipes for industry 工业用钢骨架聚乙烯塑料复合管件 |
| 9. | Internal layer thermo - fusion polyolefin aluminum polyolefin composite pipe 内层熔接型铝塑复合管 |
| 10. | Polyethylene composite pipes with porous steel strip for water supply 给水用孔网钢带聚乙烯复合管 |