... are designed according to international latest technology, mixed PVC, PP, PE, PS with plant fiber symmetricaly. It adopts high-efficiency conical ... plastic profile machinewood plastic profile is mixed by PVC, PP, PE, PS, ABS, etc with different plant fibre, and then ... , waterproof, dampproof, anti-corrosion, rot-resistence, ametabolic and good fire-retardant, it can be used after recycling, and has been ...