... use and industrial use: 1.energy-saving 2.safe Solar water project is widely use for hotel, department, villa, etc. which ... : 25-tube, 30-tube, 50-tube, 60-tube, etc.2. water tank: 1 ton, 2 ton, 3 ton, ...... 50 ton.3. vaccum ... tube4. controller: working station5. bracket: stainless steel, galvanized steel solar water project module collector