Front, side and top plate: each plate is composed of inner and outer cabin plate and heat insulation and flame retardant layer.The outer shell plate is made of 2mm thick glass steel plate (good strength and corrosion resistance), the heat insulation and flame retardant layer is made of extruded polystyrene plate with a density of 35 ~ 40 (kg/m3), and the outer shell plate is made of 2mm thick glass steel plate. The thickness of the roof is 100mm. The thickness of the rest is 80mm. The inner and outer panels, the heat insulation layer and the plywood frame are bonded to each other by polyurethane structural adhesive through the vacuum platform under negative pressure to make independent plates. Meanwhile, the steel skeleton is embedded in the plate to ensure the plate strength.
Bottom plate: the bottom plate of rectangular aluminum guide rail is pasted with anticorrosive and waterproof plywood under the inner plate, and the outer plate is made of glass steel plate, and the middle is filled with a extruded polystyrene foam insulation layer. The insulation layer density of this part is 35 ~ 40 (kg/m). Embedded bottom plate is connected with reinforcing bar (integral welding frame) and square supporting wood to ensure the insulation performance and impact strength of the bottom plate.