Model : FRP plastic cover Standard: Flexible Configuration: FRP & Steel frame Features: In general, the role of the sewage treatment plant is to reuse the factory waste water, living waste water, livestock waste water generated from factory, home and fields and the polluted water through separate treatment process and discharge them to river or sea. For this processing of sewage or waste water in the sewage treatment plant, it is required to install the plastic cover on the top of storage tank to prevent the harmful gas or bad odor generated in the tank that stores the waste water and purifies microorganism by chemical reaction or in the process of waste water treatment in the above tank. The installation of this plastic cover is to remove the harmful gas or bad odor and minimize the physical and mental damage of the related people in the working place or residents.