Seal bellows how? It is understood that, since clogging and failure of the bellows seal can be, in fact, stationary bellows seal some more serious, the sealing effect is the comparison lighter rotary bellows seal. Because the amount of steam purge is bigger than usual, it can play a sealing effect, it is not a good use of effects. Generally in the mosaic of the transfer have to do both good seal, it is generally not very with the work, it is easy to loose anti-high-temperature sealing ring. Common bellows can not play this effect, but its corrosion resistance is not very good, is not very strong, especially on larger diameter larger seal. HDPE double wall corrugated pipe again accompany you ignore it has its own double-wall corrugated HDPE excellent chemical stability, anti-aging, strong ability to adapt to the environment pp double-wall corrugated pipe, strong crack resistance. Its raw materials are produced by the flexible tube. And its ability against external pressure. Because the weight of HDPE double wall corrugated hell lighter hdpe800 strong double wall corrugated pipe, transport and connectivity, so it's quick and easy construction projects, maintenance work is also very simple double-wall corrugated pipe, the effect is obvious, but also has a great advantage . Uses for the material HDPE HDPE double wall corrugated pipe with diameter pipe than the other by more traffic. In other words, the same flow requirements, can be relatively small diameter HDPE double wall corrugated pipe. pvc double wall corrugated pipe, double wall corrugated pipe Xinzheng, Xiong Xiong Lei Lei Thailand by Thai Plastic Pipe Manufacturing Co., Ltd. Xiong Lei Thai Plastic Pipe Manufacturing Co., Ltd. (www.hebeileitai.com) strong, credible, in Baoding composite pipe industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xiong Lei Taihe you hand into the brilliant, for a better future!