Application: This kind of construction moulding board is co-extruded by two extruders,with the craft of three roller calendar.the cheap material can be enwrapped inner of the board. surface is PPE raw material. the board is not only possessing plain surface and high rigidity but also reducing the cost of produce. Bamboo model board,steel model board and wood model board can be substituted by the construction moulding board.many advantages are possessed by it,such as preventing moisty and spoil,bear the strong impact force,used many times and recycled.