Hangzhou Singer Building Material Co., Ltd. was built in 2006. We are a main producer and supplier of asphalt shingles, gutters and solid wood doors and windows in Hangzhou, China.Our factory covered about 2000square meters,we have 5 inspection people 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 is 30 years.

The material of gutter is pvc and aluminum. We can offer every color you want. Your profitability is a key aspect of our...