... .4x4.5x6.67.4x4.5x6.67.4x4.5x5.8Keyword:high speed plastic film machineryII.FunctionMuiti-Layer Downwatd Blowing Water-Cool ... materials, which could produce packing film and laminated packing materials with the good performance of barrier, sealing, transparency, photophobic, retort ... use, war industry articles for use. The films with good quality and cheap.III.Exhibition glimpsesIV.Our advantageOur ...