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Founded in 2006, Hangzhou Singer Building Material Co., Ltd. Is a main producer and supplier of asphalt shingles, gutters, metal tiles in Hangzhou, China. Our factory covered about 2000 square meters, 5 inspectors are arranged to control the quality of the goods. We have 5 kinds of shingles with 14 colors for your choose. We use the best materials to produce our shingles without fakery. The warranty time of laminate shingles can reach 30 more years. The material of gutter is PVC and aluminum. We provide custom color service to meet customer`s requirement. Your profitability is a key aspect of our ongoing growth. If you interesting with our product, pl check the product information on the web, and contact with us. We are looking forward to cooperating with you in the near future.