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. A MATURE FACTORY YOU CAN COUNT ON We have been in the roofing industry for 20+ years. We have obtained more than 10 patents to support our metal roof. Our products are tested in extreme conditions like snow, strong wind, heavy rain and extreme heat. Our roof is fully customizable from the patterns, colors to the thickness.