Drainage molds play a role in drainage of sewage, mainly including drainage, emergency channel and beam embankment three parts. The design of the emergency channel is also very critical. The shape of the rapids is complex, and they are all designed with steel molds. The sheet metal steel has the characteristics of disassembly and demoulding, and is directly disassembled when demoulding. After use, there are also certain ways to increase its service life. After use, clean it with clean water. If cement grains are not clean, you can use oxalic acid to clean it. After being clean, put it in a dry and ventilated place for the next use. In the drainage ditch mold series is the most common shape, generally underground gutters, river gutters, high-speed Rapids, canals, farmland gutters, etc., U-shaped troughs are mainly used to lay lines and act as drains. There will be a leak tank at a distance from the upper section of the expressway. The U-shaped tank will mainly drain high-speed rainwater and other high-speed water through the drain tank to avoid water accumulation.
