The film uses mainly food packing bag's inner material ，which goes through aluminum-plating or with BOPP,BOPET,BOPA material and so on，after printing and complexing，which can produce high temperature kill-mushroom steam bags，aluminium -plastic complex bags and auto-packing machine at low temperature heat-seal film，which can use directly in textile too，clothing and sound product‘s packing。Because the film put to use widely ，which urge increase day by day for market。