This equipment is widely used for steel structure workshop, roofs of simple and easy movable houses, wall body, suspended ceilings of air purification room, and separation. The rigid polyurethane foam has been recognized as the best building thermal insulation material by international world today. It has low heat conductivity, and high bending resistance capacity. This rigid polyurethane foam doesn't absorb water or decay, and it cannot be damaged by insects and mice. It has good fire resistance, and large scope of heat resistance. With the physical properties of polyurethane PU and our unique prescription, we combine high temperature polyurethane with coating steel panel, thus compact forming is achieved.