1) Die-head and cooling wind ring rotates continuously in order to ensure drawing in and rolling up film is even and smooth. 2)It employs some new technologies such as combined machine head with two-layer extrusion, lower blowing water (rapid) cooling, rotation of mould head etc. 3)It is applicable to PP, LLDPE, LDPE and binary copolymer PP to produce the packing film and compound packing material with good insulation, sealing, transparency, cooking, fresh-keeping, hot-sealing, and printing and other performance. 4)The product produced by the machine features with good insulation, hot-sealing, low temperature resistance and mechanical performance, which is the ideal packing material for high grade products.