1. Grade : Q195 , 234 , 345 ; 3 sp , 5 SP 2. profile : square 3. standared : JIS , GB,DIN 4. hot rolled Hot rolled steel billet 1. Grade : Q195 , 234 , 345 ; 3 sp , 5 SP2. profile : square3. standared : JIS , GB , DIN4. hot rolled . 100x100 12 M120x12012M150X15012M200X20012 M steel billet