... agent,coupling agent,reinforcingagent,lubricants...etc.)Main feather of SINO wood plastic composite1.Looks and feels like natural wood2.Durable,anti ... ,Rail&fence,Flowerbox&dustbin,Bench,Accessories,and UPVC wave tile.WPC, WPC Decking, WPC outdoor decking, WPC flooring, WPC outdoor floor. WPC Outdoor Flooring