Railway and Transportation Infrastructure: These channels are Employed in the fabrication of railway tracks and associated infrastructure, furnishing the necessary rigidity and assist. The first thing I do Using the raw channel is clean it with acetone. This eliminates all the Dust and oils the metallic has on it. https://erickfczvp.isblog.net/the-smart-trick-of-c-channel-manufacturers-in-india-that-no-one-is-discussing-52825705