| 1. | Fittings of coated steel pipes for water service
输水用涂层钢管的异型管件 |
| 2. | Plastic coated steel pipes for cable - ways
电缆沟道用塑料涂层钢管 |
| 3. | Coated steel pipes for water service
输水用涂覆钢管 |
| 4. | Polyethylene coated steel pipes
聚乙烯覆层钢管 |
| 5. | Polyethylene coated steel pipe
聚乙烯涂层钢管 |
| 6. | This calculation can be applied to practical projects for thinning the thermal insulation thickness and reducing the use of coat steel pipe , contributing to the purpose of reducing materials and investment
计算结果若用于实际工程，可在确保保温效果的前提下，减小保温层厚度和外套钢管的使用量，以达到减少材料的使用、节约投资的目的。 |
| 7. | So the steel plastic pipe belongs to a kind of new type pipe material in high efficiency , energy saving as well as erosion resistance , and it is also an environmental protection product as the substitute of hot zinc coating steel pipe
倍有余等优点。因此可以说，钢塑管是高效节能又防腐蚀的新型管道材料，是替代热镀锌钢管的环保型产品。 |
| 8. | So the steel plastic pipe belongs to a kind of new type pipe material in high efficiency , energy saving as well as erosion resistance , and it is also an environmental protection product as the substitute of hot zinc coating steel pipe
倍有余）等优点。因此可以说，钢塑管是高效节能又防腐蚀的新型管道材料，是替代热镀锌钢管的环保型产品。 |
