Place of Origin |
China (Mainland) |
1.many kinds of sizes are available 2.good quality 3.It is sorted to commen I beam and light I beam with the grind Q235 or Q345. The specification is from 10# to 63#. With the same waist hight and different leg and waist thick, a ,b,c is added befor the type .for example32a#, 32b#, 32c#..