Electric section for manufacturing metal fittings

The utility model provides an electric section for manufacturing metal fittings. A drainage board which is made of the section has advantages of convenient detachment and high heat radiation efficiency. The electric section for manufacturing the metal fittings comprises an annular upper connector. The annular upper connector is connected with a rectangular lower connector below the upper connector. The bottom of each annular upper connector is open. The rectangular lower connector is provided with connecting holes. The electric section can be used for quickly preparing a large number of drainage boards. In use, the lower connector is connected with a connecting sleeve. If difficult detachment occurs after long-term fixation, a small tool can be inserted into the bottom opening of the upper connector for performing auxiliary operation, thereby realizing quick separation between the lower connector and a connecting sleeve. Furthermore heat radiation troughs can be used for ventilating, thereby improving heat radiation and preventing tripping.