Vacuum tube especs:Φ47×1.5m、Φ58×1.8m
Vacuum tube amount:15/18/20/24/30
The material of the inner tank :0.5mm imports304food and one
grade of stainless steel board.
Heat preserviation :50-60mm polyurethane foam.
The material of the cover tank :Whether American flash aluminium
boardnot silver of Fluorine carbon.
Design idea:home hot water center