It is made by mixture, plasticization and granulation with the low-density polyethylene as basic resin and the addition of water tree inhibitors, ageing inhibitor, compatibilizer and other additives. It doesn’t contain harmful substances like heavy metal, and has excellent mechanical, electrical and heat ageing properties also the effect of water resistance with the stable techniques as well as smooth surface. It has passed the product qualification test by power industry standard of DL/T 1070-2007 《Appraisal test method and requirement of water treeing retardation performance in middle voltage XLPE cable》.