... .4mm,diamater of water tank:460mm 3.Insulation layer:50mm high dense integral polyurethane foam4.Bracket:Galvanized steel ,1.2mm,1 ... tank0.31-04mm thickness SUS304 stainless steelTank insulating layer55mm 45kg/m³ high-density polyurethane foamedInlet and outlet holeMale G 1/2, 3 ...