... 100x50, 50x20, 125x65, 150x75 Standard: JIS standard U channel specification:U channelItem: U channelStandard: Japanese standardSteel grade: SS400BModel type: 75x40, ... all over the world. Main products: 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 ...