1,Manufacturer of solar water heater 2,OEM service 3,Much low price,high configuration SUS304- ... , 1800mm, 58mmtype of vaccum tube24 & 30the amount of tube45 degreeangle300 & 240 Lvolum of tank 470 mmouter dia. tank Four opening in ... openinigpolyurethane foam , thickness : 55 mm , 32 kg/m3Heat insulation of water tank all stainless steel solar water heater