solar water heaters

Φ47-1500, 90-216L, Φ58-1800, 135-324L, Inner water tank:food class stainless steel SUS-304-2B with the thickness of 0.31mm.Outer tank:imported colorful armor plate or stainless steel.Insulating layers:adopt imported polyurethane and integrated  with high pressure  foamed technology,  better insulating  Vacuum tube: adopt two layers borosisicate glass 3.3,  stanless steel -cooper layers interferometer coating technique, high absorptance.Stand or Support: galvanized steel with the thickness of 1.5mm, aluminium alloy and stainless steel.Packing: carton
solar water heaters