Dongguan to the crown Plastic Products Co. It is understood that: Our PU tubes developed rapidly, quality has been improving. It is mainly used in urban water supply, city gas supply and irrigation. At present, China PU pipe production capacity will reach 10 million tons, after the column the United States, Japan, Germany, South Korea, ranking the world's top five. But PU plastic tube, PU tube for all kinds of special resin still a big gap. Currently, PU tubes are widely used because of its unique advantages in building water supply, construction of drainage PU, underground drainage, building heating, gas, electrical and telecommunications protective sleeve, industrial pipe, agricultural pipe. Since the 1990s, the vigorous development of China's industry PU pneumatic tubes, production and consumption has maintained a good momentum of growth. PU pipe production in China, though large, but suitable for pipe PU tube much, especially suitable for urban water supply, city gas delivery tube with PU Compound and construction of hot and cold water in less PU hose, need import a certain number of PU pipe. The crown - the industry's leading manufacturers! Dongguan to the crown Plastic Products Co., as the temperature rises, the oxygen content of water in the PU trachea increases. Which we should consider is PU tube has a certain oxygen permeability. PU trachea oxygen permeability and therefore more pronounced. Later, the use of oxygen barrier type PU trachea become the main solution to the problem of gas permeable tube PU, PU trachea application standards in Germany was subject to a hot water pipe at 40 degrees Celsius, the oxygen permeability of not more than 0.1mg / (L · day) and standards for the detection of oxygen barrier properties. In China, the relevant departments for reasons of technology and production costs and other factors, whether the hot water system must use an oxygen barrier PU trachea and not mandatory. At present, the practice of application of the oxygen barrier PU trachea, this PU trachea appears only in some high-end building heating system. PU, the crown plastic pipe products, PU tube suppliers by the Dongguan City, the crown plastic products Limited. PU, the crown plastic pipe products, PU tube supplier in Dongguan City, the crown Plastic Products Co., Ltd. (www.gddgyg.com) this year introduced a new upgrade, the above picture is for reference only, please call the contact or pictures on this page phone, for the latest information, contact: Mr. Chiang.