... of plastic film blow molding unit, by the extruder, single-layer blow die, cooling wind ring, traction machines, coiling machines, temperature and electric ... but also produces HDPE, LLDPE film. The family unit has the following structure, complementary features: 1, screw extruder, spiral tube-based company2, ... electrical appliances are well-known brands Jingcheng high speed plastic film blowing machine