CHARACTERISTICS: *choosing high strengh polyester and high qulity PVC.the polyester:1000D,1300D.1500D.2000D,2500D,3000D. *only uesd DOP.no including any DBP or Calcium and other impurities <strong> *it is successively winded,parted the threads regularly and molded by plastic coated once. APPLICATION: it is an ideal product used for drainage in the fields of agriculture irrigation,forestry sprinkler irrigation,construction project,industrial ustrial ustrial ustrial ustrial ustrial and mining enterprise. WORKING TEMPERATURE: -5'C-60'C