Plastic bellows first developed in the 1950s, has been rapid development in the last 20 years. Has been the development and application of a plastic bellows, depending on the material used in the production of corrugated plastic pipe can be divided into "HDPE bellows", "UPVC bellows", "PP bellows," and so on, where PVC plastic bellows than the current production Great. Plastic Bellows in the structural design of special "annular groove" type profiled form, this pipe design, reasonable structure, breaking the 'plate' traditional structure of ordinary pipe, so that the pipe has both sufficient compressive strength and impact Strength bellows equipment, but also has good flexibility. Depending on the structure of plastic corrugated pipes, bellows can be divided into single-wall and double wall corrugated pipe bellows. Single-walled corrugated plastic pipe refers to a plastic tube inner and outer walls have a corrugated pipe PVC corrugated pipe equipment, has high rigidity, can be bent, infinite scroll installation. Double-wall corrugated pipe is a smooth inner wall and the outer wall refers to having a corrugated (undulated shape can be rectangular, trapezoidal, sinusoidal, etc.) plastic tube PE corrugated pipe equipment, it is simultaneously extruded corrugated outer wall and a smooth inner wall layer of melt Results extrusion. In addition to its ordinary plastic all good corrosion resistance, high insulation, wall smooth, flow resistance characteristics of small outside, due to the use of a special hollow ring stiffness and good strength and toughness. Qingdao day letter Thai Plastic Machinery Co., bellows forming module, with hard steel and hard material through strict use of CNC finishing treatment made to ensure the accuracy of the hardness and the small-diameter corrugated pipe equipment molding module, closed machine structure, module links within the overall closure of the base, in the molding tunnel by running back and forth. We can increase production by increasing the number of modules. Bellows due to a light weight, durable and free wrapping, etc., suitable for use cable threading pipe, household appliances and medical purposes with a tube breathing tube and other industries on. MPP bellows equipment | Letter Days Inn (Online) | bellows equipment from Qingdao day letter Thai Plastic Machinery Co., Qingdao day letter Thai Plastic Machinery Co., Ltd. (www.qdtianxintai.com) (www.txt-extruder.com) is the leader in Qingdao, granulating machine, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. Nobuyasu leadership in the days of the staff warmly welcome all inquiries negotiations to create the day Nobuyasu better future.