| 1. | Steel framed polyethylene plastic pipes for industry 工业用钢骨架聚乙烯塑料复合管 |
| 2. | Steel reinforced polyethylene plastic pipes for water supply 给水用钢骨架聚乙烯塑料复合管 |
| 3. | Application of composite steel skeleton reinforced plastic pipe 钢骨架增强塑料复合管及其应用 |
| 4. | ( 4 ) the beam thickness of the steel framework was optimized ( 4 )进行钢骨架板梁厚度优化设计。 |
| 5. | Fitting of steel framed polyethylene plastic pipes for industry 工业用钢骨架聚乙烯塑料复合管件 |
| 6. | Perforated steel skeleton polyethylene composite pipes for industry 工业用孔网钢骨架聚乙烯复合管 |
| 7. | Steel framed polyethylene plastic pipes for the supply of gaseous fuels 燃气用钢骨架聚乙烯塑料复合管 |
| 8. | Fittings of steel reinforced polyethylene plastic pipes for water supply 给水用钢骨架聚乙烯塑料复合管件 |
| 9. | Fittings of steel framed polyethylene plastic pipes for supply of gaseous fuel 燃气用钢骨架聚乙烯塑料复合管件 |
| 10. | Fittings of perforated steel skeleton polyethylene composite pipes for industry 工业用孔网钢骨架聚乙烯复合管件 |