LDPE, LLDPE melt viscosity of the resin is small, good fluidity, easy processing, and thus their choice of a melt index is wider, usually between MI 0.3-3g / 10min. Reliable connection: the electrical connection between the hot-melt polyethylene pipe systems, the joint strength is higher than pipe body strength. Low-temperature impact resistance: Low temperature brittleness of polyethylene is very low, it can be safely used within a temperature range of -60-60 ℃. Construction in winter, because the material impact resistance, does not occur tube embrittlement. Good stress cracking resistance: HDPE has a low notch sensitivity, high shear strength and excellent anti-scratch ability pe200 pipe, resistance to environmental stress cracking performance is also very prominent. Good chemical resistance: HDPE pipe can withstand a variety of chemical media corrosion, chemicals present in the soil will not cause any degradation of the pipeline. Polyethylene is an electrical insulator, it will not rot, rust or electrochemical corrosion phenomenon; in addition it will not promote algae, bacteria or fungal growth. Anti-aging, long service life: polyethylene pipe containing 2-2.5% uniform distribution of carbon black can be stored or used for 50 years in outdoor, it will not be subjected to ultraviolet radiation damage. Good wear resistance: abrasion comparative tests show that HDPE pipe and steel pipe, wear HDPE pipe is 4 times the steel pipe. In the mud transportation field, compared with the steel pipe, HDPE pipe has better wear resistance, which means that HDPE pipe has a longer life and better economy. Low temperature brittle point polyethylene has a very prominent low temperature performance of PE pipe -70 ℃, better than other pipes. In winter field construction PVC (PVC-U) pipes easy to rattle, my Beijing area laying PVC (PVC-U) buried Water Pilot Project is an experience summarized in subzero temperatures would not be suitable for Polyvinyl chloride (PVC-U) pipe laying construction of the. There is a clear evidence for improving the toughness of PP pvcu and low temperature impact resistance to water, may be made of ethylene and propylene monomer random copolymer polypropylene (PP-R), which generally use the process route and iPP The method of pipe pieces, the mixed gas of propylene and ethylene co-polymerization to obtain a main chain randomly distributed propylene copolymer (PP-R pipe material that is) ethylene segments, PP-R pipe material, mostly ethylene content at around 3%. But the improved PP-R low temperature performance is still unsatisfactory, its brittle point of about -15 ℃, much higher than the brittle point temperature polyethylene pipe -70 ℃. 1, leakproof flutes embedded in the concrete floor when watering, so as not to form a gap, so as to avoid leakage; 2, impermeable wall corners formed hug posture can prevent smearing glue caused by uneven water out of the inner tube leakage; 3, stud hole so that the product can be estimated accurately fixed position, do not move with the construction of a collision, thereby ensuring the future installation of the pipe beautiful; 4, the inner wall of the dust cover to prevent concrete entering directly embedded, to avoid install pipes cause difficulties, but also to prevent debris entering the cause within the first installation of the pipe after pipe blockages. pe water pipe _ double clear plastic (certified) _ water supply provided by Xiong Zan Pair bright plastic products factory. Xiong Zan Pair Ming plastics factory (1620231.707070.cn) 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. In the two-out plastic leadership with the staff warmly welcome all inquiries negotiations to create a two-out plastic better future.