The polycarbonate folding door is highly welcomed for its characteristics of beautiful appearance,novel style,diverse colors,easy to use,push and pull freely,and effectively save the occupancy space of doors,etc. The folding door has the fesstures of light weight,heat insulation,moisture proof,fire proof,flame retardant,noise reduction,sound insulation,acid and alkali resistance and so on. It is easy to clean and also suitable for kitchen,bathroom ,toilet and so on. Its installation is easy and fast,lifespan is long and it is easy to maintain. It has been widely used in office,shop,large area of heat preservation,insect production,dust proof,shelter and isolation applications.