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Founded in 1989, Ketelong® enterprise has been engaged in the research, development, manufacturing and sales of plastic building materials, which has developed from single-layer-coextrusion development to the multi-layer-coextrusion development to create a brand new application field for the plastic building materials. Currently it is made up of Ketelong Building Materials Co., Ltd., Hongbo Building Materials Co., Ltd., Jinkete Plastic Co., Ltd., Plast Science and Technology Co., Ltd and municipal engineering research and development center, five sales departments stationed in other places (Shanghai, Wuxi, Beijing, Hunan Province and Hong kong) and more than one hundred sales branches which cover 31 provinces, cities, autonomous regions and Asia, Europe, America and Africa
The major products of our company feature Ketelong PC sheet, sun panel, heat-molded lighting shield series, and Hongbo APVC compound corrugated roofing sheet (patent No.:ZL03225663.9), FRP lighting sheet, PC transparent corrugated roofing sheet, PVC corrugated roofing sheet, flat sheet and sheet series of products, among which Ketelong PC sheet series of products adopts
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hongboproduct 
