硅酸铝保温材料，耐火材料，高温玻璃棉-九天耐火保温材料有限公司

Pu heat preservation pipe structure: 

Outer protective layer, heat preservation, prevent leakage layer three parts, the covering material is polyethylene or glass fiber reinforced plastic or other materials. Installation is directly buried, empty, cooking three ways. Our factory in long pipes pu heat preservation, heat insulation construction has accumulated rich experience, its quality reaches the national and international standards, deeply the general customers trust.