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 Cellar drip irrigation, is runoff into the cellar (or other micro-storage projects) within or referenced by other Rainwater Catchment surface, adding drip irrigation to solve problems arid regions. It has a simple structure, low cost, every household can use the features. For drought poor mountainous achieve each have half an acre to an acre of farmland Hanlaobaoshou Central Qi plastics, food and clothing problems and economic development has an important role courtyard Central Qi plastic cpvc manufacturers, should be vigorously promoted in arid and dry mountains. UPVC pipes and linear expansion coefficient of linear expansion coefficient of PE pipe a (/ 0C) UPVC (PVC-U) 6 × 10-5 HDPE (high-density PVC) 18 × 10-5 MDPE (low density PVC) 16 × 10-5 seen PE pipe has a great linear expansion coefficient than UPVC pipe, so the design should take it seriously. Compare UPVC pipe anti-aging properties of the developed countries for PVC. Comprehensive Evaluation of PE pipe is as follows: content evaluation values ??PVC HDPE MDPE aging above table shows that the value of 2013: From anti-aging value Shandong Qi plastic ring, long-term strength of the plastic ring Qi cpvc, PVC pipe is superior to PE pipe; from damage in the form of point of view, PE is better than PVC. As easy roll and weld properties only and installation processes. Transportation and other related, not as the main index evaluation of the two materials. Central Qi plastic cpvc supplier, Shandong Qi plastic ring, ring by ring Qi Qi plastic plastic. Looking for "UPVC, CPVC pipe fittings and valves, PVDF, PP valves, etc." fly suppliers, network operators choose to have a full alliance Certified: Shandong Central Qi Plastics Co. (www.hershey-sd.com), trustworthiness and reliability, Now click on the "Business Alliance Customer Service" on page live chat with us now!