This sheet extrusion line is equiped high performance vented extruder, die, screen change system, vacuum forming table, cooling rocket, haul-off unit, cutting unit and etc.This kind of line is specially designed for producing PC and PP hollow cross-section sheet with width upto 2300mm. It can be for produce PMMA and PE sheet also.PP hollow cross-section sheet is mainly used in package industry. The PC hollow cross-section sheet is used in following area:Construction of sunroof in building, hall, shopping centers, stadiums, public places of entertainment and public facilities;Rain shed of bus stations, garages, pergolas, corridors;Transparent shields for security forces in nursery schools, airports, factories;Skylight of modern agriculture and aquacultures, indoorpools;Sign boads for ads, light box and exhibition;Sound insulation board on high way and trestle in city.