In the sewage treatment plant, some inspection walkways, gutter covers, large containers, washers, trash racks, flow tanks, biochemical water treatment tank hangers, ventilation windows, stairs, etc., can see FRP grating and FRP guardrail, This is the 2 corrosion-resistant artifacts of the sewage treatment plant. Because FRP gratings and guardrails are resistant to corrosion, light weight, high strength, and are easy to cut, designable, and flexible in size, they have been promoted.

Here, the FRP grating is used as a walkway plate platform, and the FRP fence is used to protect the surrounding. There are also many types and assembly methods for guardrails. Commonly used are round and square tubes.