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Zibo Haineng plastic Pipe Co., Ltd. is the only enterprise in China and in the field of R & D, production, sales and mechanical mould manufacturing of large caliber U-PVC winding pipes. On the basis of fully absorbing and adopting domestic and foreign pipeline manufacturing technology, advanced and reasonable design of structural plane of sheet metal is carried out, extrusion die and pipe winding machine are made together, which has the comprehensive capability of producing sheet metal and winding pipeline in situ. Comprehensive production of 400-3000 flexible U-PVC large caliber winding pipe, obtained a national patent, is a national use of technology products application and promotion of well-known brand enterprises. In order to popularize the new technology of winding pipe by plastic instead of steel, plastic instead of concrete, a new type of energy-saving winding pipe plastic sheet strip, pipe winding on the spot, the sea energy pipe industry has won the national exemption from inspection of profiles. Shandong Liangshan Tianhong Plastics Building Materials Co., Ltd. and Shandong Binzhou brilliance Building Materials Co., Ltd. have carried out project cooperation, forming a group production scale to meet various needs of the market, and now producing seven kinds of plates of specifications. For winding pipe of different diameters, we have developed 400-600-600-1000 1000-1500-2000 1500-2000 winding machine with five specifications, which can wound all kinds of diameter, single layer, double layer and multi-layer winding pipe respectively. The promotion and application of flexible winding pipe, a new technical product, has a wide range of useful items for urban sewage, water diversion, farmland irrigation, mine ventilation, etc., in order to facilitate construction, lower price, higher quality, longer life, etc. Will play a strong vitality, to achieve good social and economic benefits.