1. High-density polyethylene (HDPE) HDPE haina chepfu, inonaka uye haina kunhuwa, ine density ye0.940-0.976g/cm3.Icho chigadzirwa chepolymerization pasi pekumanikidzwa kwakaderera pasi pecatalysis yeZiegler catalyst, saka yakakwira density polyethylene inonziwo low pressure polyethylene.Kubatsira: HD ...