(1)Tank casing: elaborately fabricated with the selected fluorocarbon boards or aluminum-coated zinc plates, thus resistant to corrosion and oxidation.

(2)Internal bladder of water tank: fabricated with SUS 304-2B food grade stainless steel plates, welded through automatic computer control, having advanced process technology and long service life.

(3)Insulation course: one-time integral foaming using polyurethane, the thickness of the insulation reaches 55~60mm with uniform density, high hole-closing rate and better insulating effect.

(4)Vacuum tubes: made of vacuum graded multiplayer coated membranes using 3.3 ultrahard vycor glass, which can withstand attack of 25mm hail.

(5)Bracket: made of premium high-strength aluminum alloy bracket with high strength and corrosion resistance, the bracket angle is designed to withstand strong wind and obtain good illumination adaptability.

Seal rings: made of medical silicon rubber which is strong tightness, resistance to high temperature and aging.