| 摘要 |
PURPOSE: A collecting well cover for preventing offensive odors and filth, and manufacturing and installing methods thereof are provided to have improved corrosion resistance, shock resistance, and chemical resistance. CONSTITUTION: A collecting well cover for preventing offensive odors and filth comprises a steel plate and a cover(10). The steel plate has through holes. The cover comprises upper and lower plates. The upper and lower plates are made of a synthetic resin material and are integrally formed on the top and bottom surfaces of the steel plate. The upper plate has a water permeation unit. The cover has hangers and connecting protrusions. The hangers have hanger holes. The connecting protrusions are inserted into the hanger holes of another cover. |
