Solar Water Heater For House supplies
Inner tank: 0.31mm-0.45mm SUS304 2B food grade stainless steel
Outer tank: 0.4mm SUS304 2B or BA food grade stainless steel or 0.5mm galvanized steel
Frame: 1.2mm stainless steel or 1.5mm galvanized steel or anodized aluminum (for coast area with corrosion problem )
Tubes: High birosiligate glass tube with AL-N-AL coating or AL-N-AL-CU-SS Three target coating