... Channel steel with reasonable price. Including Chinese standard, Japanese standard and so on. Material: SS400, ST37-2, A36 ... , S235JRG1, Q235, Q345 etc. Length: 6meter, 9meter, 12meter Chinese standard ... 4.5mm -400*104*14.5mm Japanese standard size: 50*25*3mm-300*90*13mm ... all over the world. Any information on your market demand will be really appreciated ...