cold rolled section steel I shaped steel 1.grade: Q235/201/202/304/ ... : 10#-63# 3.thickness:4.5-14.5mm cold rolled section steel I shaped steelWuxi Runchang Stainless Steel Material Co.,Ltd ... .6A*1219UP*C2.80Jiangsu0.7A*1219UP*C2.81-2.82Jiangsu0.8A*1219UP*C2.80-2.82Jiangsu1.0A*1219UP*C2.81-2 ... Steel City,No.118,Beihuan Road,Wuxi,China. cold rolled section steel I shaped steel