[introduction to the chamber body] the chamber body is made of double-sided glass steel sheet skin and polyurethane insulation material. The box body is made in Germany. The wet wet method is used to make the box board. The insulation material is made of fluorine-free polyurethane outdoor foam slice type, and the box plate is molded by high temperature, high pressure and vacuum pumping. The chamber body adopts adhesive structure, with large contact area, uniform force distribution, good sealing performance and high overall structural strength. The box has the characteristics of good thermal insulation, environmental protection, energy saving, corrosion resistance, light weight, long life and anti-aging. Moreover, the appearance of the box is high, which is suitable for car body advertisement.