... water heater: 80L 100L Products' features1.Collector adopt Copper and aluminum composite panels as the core, has very ... alloy plate, color optional, mechanical strength ≥270N/m2.6.Backboard/black plate: hot dip galvanization steel plate7.Whole ... *0.5No. Of Riser Tubes17Lighting Area1.76sq.kAbsorberstructure, copper full-surface absorberCore styleTube plateSpectrum Absorber Coatingblue titanium coating ...