Passive Solar Water Heater , non pressure system within the newest non-weldding tech. for tank.
Insulation Proection: 50-55mm environmental protection foaming
Shell: Galvanized steel at 0.5-0.6mm thickness,by film or powder,OEM logo can put on by screen printing
Frame: frame angle at 38- 45 degree,Galvanized at 1.5mm thickness with bar/hanging board reflector
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