Zhejiang Jianzhan Technology Co., Ltd.is a professional custom stone coated metal roofing suppliers and roof tiles manufacturers which provides wholesale stone coated metal roofing for 20 years. Automated production workshop of 40,000?. Produce 6 million pieces per Year and colored stone sand exceeds 50,000 tons. [email protected] TEL:+86-13867158775 ADD:Taoyuanwu Scenic Area, Deqing County, Huzhou City, Zhejiang Province, China