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Twin-wall hollow roofing sheet co-extrusion line consists of extruders, extrusion mould, calibration system, haul-off machine, cutter and stacker. The extrusion mould adopts the latest co-extrusion technology with very precise design with multi-cavities. The shaping mould includes the vacuum calibrating system and special design of cooling runner with excellent cooling effect. The surface UV-layer is co-extruded with ASA/PMMA bright color, which is not easy to fade. Compared with traditional plastic roofing sheet, this twin-wall hollow roofing sheet is better for heat and sound resistance. It is suitable for tropical weather with advantage of anti-corrosion, rust-proof, strong durability, and beautiful appearance, easy and fast installation. Because of the stronger rigidity, the twin-wall hollow roofing sheet is widely used in the factories (including chemical and treatment plant), sports stadium, schools, agriculture industry, marine, warehouse and commercial buildings.
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