Located in Hefei, Anhui, China, Hefei Bang Yuan Electric Co. Ltd is a specialized manufacturer of Vacuum type Solar Water Heaters. It has production workshop of 20,000 square meters. And this company has a strong team of research staffs and many modern types of equipment which enables high production efficiency of over 100,000 sets capacities. Inner tank material is stainless steel SUS304/2B, Outer tank material has stainless steel, Aluminum Alloy and painted galvanized steel. They can have designed as per Customer&＃039;s requirements, such as to have Automatic water feeding, automatic temperature control and electric heater as options. The main feature of the products is its welding technology, all tank welding is seamless. Another feature is the automatic foaming on polyurethane. These two features are the most important in quality guarantee