... 1, screw extruder, spiral tube-based company 2, by matching the high reliability of the hardened ... "jingcheng" DM series of plastic film blow molding unit, by the extruder, single-layer blow die, cooling wind ring, ... the necessary components, but also produces HDPE, LLDPE film. The family unit has the following structure, complementary ... are well-known brand. Guangdong wide-range blown film machine