1,thickness 3~16mm 2,material:A3,Q235B,Q345B,SS400,65MN, ... one of the manufacturers and exporters of cold formed section steel supplies in China;Our products are widely used in building ... of section steel , galvanized steel in China, (U.C.Z channel purline steel , cold formed and deformed steel, angle bar, channel steel and galvanized steel)We could ...