1.various in kind,material,thickness and design according to request. 2.excellent in quality,competitive in price. materialstainless steelthickness0.31mm~0.38mmpriceUSD1.5~5 (get latest price)depth35mm~55mm 1.Material is in line with national standards, purchased from Baosteel 2.Solar heater parts are produced by skilled workers who have over 6 years production experience.3.The price is ...