... ,ISO9001-2008,SRCC,Solar Keymark,UL,SABS offer OEM Name: Non-Pressure Solar Water Heater(Stainless Steel Series) a) ... diameter: 320, 360mm.c) Outer tank material: stainless steel,diameter: 420, 455, 460, 470, 480, ... -2008, SGS, SRCC, Solar Keymark,SABS... ________________________________________________________________________________ Name: Non-Pressure Solar Water Heater(Colored Steel Series)a) Item no ...