Guangzhou Haoyi Building Materials Co., Ltd. is specialized in researching, developing and manufacturing Polycarbonate (PC) Panel with world top PC extruding plate production lines and other plastic products such as PVC, PP and PE.Keening on customer satisfaction is our eternal pursuance. Our company strictly follows the ISO9001:2000 international quality management system, and is expecting to developing together with friends of all levels for achieving brilliance with quality service on the basis of service first and eternal operation.We are also a professional manufacturer of roofing sheets like polycarbonate sheets, turbo ventilators, polycarbonate roofs, polycarbonate corrugated sheets, polycarbonate flat sheets, polycarbonate multi-wall sheets, embossed polycarbonate sheets, opal polycarbonate sheets, compact polycarbonate sheets and transparent polycarbonate sheets.Polycarbonate sheet is available in twin wall, triple wall, and six wall type, and can be cold formed for arched, Quonset and curved greenhouse, sunroom, and patio cover. Multiwall and corrugated sheet is available in 4 & 6 foot width and in lengths up to 36 feet. Multiwall polycarbonate offers insulation r-values of 1.6 for 6mm to 3.7 for 25mm.Polycarbonate is virtually unbreakable and is used in impact resistant glass, sunglasses, and dishware.Colors available include clear, white (often called opal) and bronze (often called smoke). Clear is for applications that require maximum light and solar transmission, like greenhouse. White is more opaque and is often used in tropical like greenhouses and to hide dirt that may accumulate on the roof or top hide images that are behind the polycarbonate. White also reflects the suns rays and will not accumulate heat in the way that bronze can do. Bronze will reduce light and heat, but is most often an esthetic choice. Bronze will also expand and contract more, possibly creating noise on large sheets.
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