1) inner tank: imported food grade stainless steel sus304-0.5mm 2) vacuum tube: 47/1500;58-1800 3) outer tank: painted steel-0.4mm/aluminum-zinc coated steel-0.45mm/stainless steel sus304 4) insulation: polyurethane 50mm/60mm 5) frame: coated galvanized steel-1.5mm/stainless steel sus430-1.5mm 6) reflector: aluminum component/stainless steel/none 7) if not stainless steel model, outer tank/frame/side cover color: option (blue/red/golden etc..) Manifold in one carton, frame in one carton, vacuum tubes in several cartons
