Hangzhou Laihua Building Materials Co., Ltd. was built in 2012. We are a main producer and supplier of rain gutters and waterproofing materials in Hangzhou, China. Covering about 4000 square meters, we have 5 inspection people to control the quality of the goods. We have 5 kinds of shingles with 14 colors for your choice. We use the best materials to produce our shingles without fakery. The warranty time of laminate shingles is 30 years. The materials of gutter are PVC and aluminum. We ...