u channel steel,different sizes U channel steelhot rolledcold bendedJIS standard(janpanese standard)U CHANNELchinese standardAmerica standardBrithish standardQ235our main steel products, 1) Steel tubes & pipes,GI ... IPEAA,IPE3) channel steel,U channel steel,C channel steel,Z section4) Angle steel,unequal angle steel5) Hot-dip galvanized steel sheets/coils,galvalume steel,corrugated steel sheet,GI, ...