... 100x50, 50x20, 125x65, 150x75 Standard: JIS standard U channel specification:U channelItem: U channelStandard: Japanese standardSteel grade: ... 100x50, 50x20, 125x65, 150x75 Technique Hot rolled u channel Certificate ISO 9001:2008 Length 6m, 9m, 12m ... F of Haitai building, No.6., Meiyuan Road, Huayuan Technology Park, Tianjin, China Website: anxingda.en.alibaba.comU channel High Quality U channel ...