Ultra-impact free door, the industrial free door with highest strength at present, has various kinds of door panel such as stainless steel, ABS and others. It has the characteristics of impact-resistance, durable and clear, and is easy to install and maintain. It can meet all kinds of industrial environment requirements, such as forklift and trolley operation. It can work in a water environment and is easy to wash by hand. It is widely used and can help customers save money. Applicable places warehouse, cold storage, storage room, hospital, operating room, passageway,lounge, parlor, supermarket, food factory, logistics center, factory, freezer, wharf, hotel, pharmaceutical factory, post office, etc. Applicable object All kinds of forklifts and carts, pedestrians and so on. Material It adopts a high-strength fireproof composite plastic plate with the thickness of 20 mm or 40 mm as the main core material, and has the characteristics of high pressure resistance, moisture resistance, air-proof, corrosion resistance, low thermal conductivity and environmental protection. The high-strength stainless steel is selected on the surface of the door body, and the high