... /ISO9001-2000/SGS. 2.Professional manufacturer. 3.Sample is available. solar water heater project4.Payments:T/T,L/C.5.Min order:1 ... building surface, against winds strongly.3. Water strong and pithiness, make you feel comfortable . 4.Water heater system is controlled by microcomputer, suit ... sheet. 4. Inner tank material: SUS304 food grade stainless steel plate, the thickness is 0.4mm\0.5mm\0.6mm. 5 ...