pu tube - PU tube nature ○ transparent tube has a high transparency, medium flow conditions is clearly visible. ○ high-resilience polyurethane raw materials manufacturing; makes pneumatic tube having a smaller bending radius pu pneumatic tube, easier to install. Characteristics of PU tube: 1 pu custom, oil performance, is 15-20 times of natural rubber oil resistance; pu custom specifications, impact pu, fatigue, light and flexible, which is thirty percent by weight of the rubber hose to seventy; 8, but resistance, non-toxic and tasteless. Impact resistance, fatigue resistance, safe and reliable; the crown Plastic Products Co., Ltd. of Dongguan as the temperature rises, the oxygen content in the PU trachea hot water 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. Food-grade pu tube, pu tube Supply of high quality (certified), pu provided by the Dongguan City, the crown plastic products Limited. Dongguan City, the crown Plastic Products Co., Ltd. (www.gddgyg.com) Dongguan, Guangdong, wire, tube, leader board manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum meet customer needs. Plastic pipe crown in the leadership with the staff warmly welcome all inquiries negotiations to create the crown Plastic pipe a better future.