Lipped Channel Thin wall, light weight, cross-section excellent performance, high strength, etc. StandardAISI, ASTM, BS, DIN, GB, JIS ... .) Lipped channel has thin wall, light weight, cross-section excellent performance, high strength, and so on.b.) Compared with the traditional ... kind of pipes, Galvanized Steel Pipe, Seamless Steel Pipe, Square/Rectangular Steel Tube, Light/Heavy Steel Rail and ect. It ...