... 75x40, 100x50, 50x20, 125x65, 150x75 Standard: JIS standard U channel specification:U channelItem: U channelStandard: Japanese standardSteel grade: SS400BModel type ... 75x40, 100x50, 50x20, 125x65, 150x75 Technique Hot rolled u channel Certificate ISO 9001:2008 Length 6m, 9m, 12m Payment ... as east pearl of China, which contains one of the five biggest ports in China, they are Tianjin port, Shanghai ...