1, the inner and outer surfaces look no irregularities, no similar defects 2, the internal pressure of the experimental 30s load 750N (stress type), continued 1min, the rate of change in diameter of less than 25% 3, the impact of the experimental treatment 60 ℃ 240h, also placed 2h at 0 ℃ at 300mm height 2.0Kg with a hammer (big stress type) impact, no damage. 4, insulation resistance Guangdong carbon bellows, MΩ ≥100 5, withstand voltage performance 2000V breakdown voltage 15min No 6, pipe forming performance pipe within the range of 90o to 180o bendable, visually no obvious structural defects 7, ring stiffness ≥18.0 Xiong Wang Thai Plastic Products Factory PE gas supply pipe production line efficiency screw host using PE, efficient dual-chamber vacuum sizing techniques offer carbon bellows, with the ability to efficiently transfer out to meet the needs of efficient production .PE gas supply pipe production line is widely used in Sichuan carbon bellows, can produce all kinds of PP, PE pipe, good plasticizing effect and high yield. Nanchang carbon bellows _ Xiong Wang Thai (certified) _ Lishui carbon bellows provided by Xiong Wang Thai Plastic Products Factory. Xiong Wang Thai Plastic Products Factory (www.wangtai668.com) Hebei Baoding, UPVC pipe leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Xiong Wang Thai leaders in the staff warmly welcome all inquiries negotiations to create Xiong Wong Tai a better future.