... with CE,Solar Keymark,CCC 1.Products series ModelCapacity(L) outer Tank diameter mmVacuum tube size and numberWeight Kg20ft/ 40HQ ... with high temperature originates from Germany Bayer Company,whose inner tank,outer skin,end cap and insulation layer form a perfect ... thickness color steel/ fluorine carbon steel/sus210,360mmMaterial of inner tankFood grade 0.31-0.5mm thickness SUS304 stainless steel ...