solar water heater

Prdouct Key specific &material : A) horizontal-plug solar collector: 50 or 60  pieces vacuum tubes B) Inner tank: 0.4mm SUS 304 stainless steel C) Insulation material: Polyurethane; Thickness: 30-50 mm D) Outside tank: Aluminum-galvanized plate or color steel E) Vacuum tube specific (Dia*L): 47-1500mm ,58-1800mm F)  frame: Iron-galvanized plate or zinc-coated steel plate G) Heat preservation: 72 hours H) Hail resistance: 25mm Packing :Export Carton  
solar water heater