... ,DIN STANDARD, UPN, UPE, etc 2.SIZE: 50mm-400mm TANGSHAN BAIFENG STEEL STRENGTHSPRICE: Keep lower operating costs so as ... Q345,ASTM A36,DIN STANDARD, UPN, UPE, etc SIZE: 50mm-400mmH—BEAMSpecification: JIS G3141,GB Q235--Q345,ASTM ... DIN STANDARD, EN STANDARD, etc All Sizes from Size 100--Size 600 I—BEAMSpecification: JIS G3141,GB Q235--Q345, ... etcUpdate Date:2011-2-16 18:05:59 channel steel 100*50*4.5*7.5