Zhengzhou, Henan Haotong Pipe Co., Ltd., is a large Central Plains Municipal sewer HDPE double wall corrugated pipe production enterprises green bioplastics widely respected in recent years, major companies are actively developing new green materials. By changing the development of novel plastic additive dispersed in the molecular structure, improve or reduce the cost of the chemical nature of the substance. About PE double wall corrugated pipe Here are my friends understand it? If you have any questions about electricity price data pipe, welcome to inquire our staff, we have professionals for you to explain, until you are satisfied. We are looking forward to seeing you soon. Zhengzhou, Henan Haotong Pipe Co., Ltd., is the Central Plains municipal drains relatively large double-wall corrugated HDPE pipe manufacturer, one must pay attention to: the hair must be preheated and then sand, sand hair no longer has good sand wall preheating, or affect bonding. 5, heat shrink tubing: Move the casing pipe joints be centered power, remove the power tube separation membrane performance, uniform heating along the circumferential direction from the middle to the fully retracted and then extended to the ends of the heating respectively. Heat shrinkable sleeve to allow the temperature does not exceed 250 ℃ when heated. After all shrink be re-heated surface dimples where it completely flat. After the completion of the overall heating should be re-heated again to make hot melt sufficiently overflow. Shrink process using pressure rollers will heat shrink tube rolling several times the power of information and focus on the fusion rolling lap, remove air bubbles, the heat-shrinkable completed, perform quality checks. [Power management], power management performance, ho-ho-pipe industry provided by the pipe industry. Welcome to consult Pipe Co., Ltd., Zhengzhou Haotong (www.zzhtgy.com), be sure to specify when contact is through the "Business Alliance Member" see, thank you! Contact: Zhang Kuaiyong