1. has good tensile, compressive strength: but flexible than other plastic pipe. 2. Fluid resistance: PVC-U pipe wall is very smooth, fluid resistance is small, the roughness coefficient of only 0.009, its water capacity than the same diameter cast iron pipe increased by 20 percent, more than 40 concrete pipe %. 3. corrosion resistance, excellent chemical resistance: PVC-U pipe has excellent resistance to acid, alkali pvc pipe, corrosion-resistant, unaffected by moisture and soil pH of water, without any preservative treatment pipeline laying. Dongguan to the crown is a company specializing in the production of PVC pipe from the situation of China's plastic pipe industry point of view, relative to developed countries, the production and application of plastic pipe, there are still some deficiencies, for our plastic pipe applications, as well as we need to develop a lot. In China, there are a lot of PVC pipe producers still in the low end of the industry, to produce PVC pipe can only play a role in building drains industries. Although the construction industry development speed very quickly, drain also a great demand, but PVC products of varying quality pvc pipe fittings, the market demand is also increasingly saturated pvc pipe manufacturer, so the development of many companies is very difficult, and this PVC pipe manufacturer urgent need to find ways to open up new markets, the current transportation fuel gas, communications cable, irrigation has great development space, which are plastic enterprises have to think about. Dongguan to the crown is a specialized production of PVC pipe business, with our superb technology, excellent quality, excellent service remain leader of the industry, we are the plastics industry continues to develop and innovate, to strive for on a new level. _pvc pvc pipe pvc pipe _ the crown tube provided by the Dongguan City, the crown plastic products Limited. Dongguan City, the crown Plastic Products Co., Ltd. (www.gddgyg.com) strong, credible, in Dongguan, Guangdong wire, pipe, plate manufacturing equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improve the more innovative ideas will lead pipe crown plastic products into the brilliant and you work for a better future!