... always used together with I beams.steel channel information: Product name High Quality steel channel Standard JIS standard Steel grade SS400B Model type 75x40, 100x50 ... galvanized steel coil, galvanized steel sheet, prepainted steel coil, prepainted steel sheet, galvalume steel coil galvalume steel coil, galvanized steel strip, cold rolled steel coil, hot rolled steel coil, corrugated steel sheet , ...