Hot rolled carbon steel square pipe(Q195,Q235B,Q345B,A36,SS400,S235JR,S355JR) 1.Factory direct price 2. ... Free sample available Hot rolled carbon steel square pipe(Q195,Q235B,Q345B,A36,SS400,S235JR,S355JR) Detailed Description:1.Material : Q235 ... .0-20.0 Hot rolled carbon steel square pipe(Q195,Q235B,Q345B,A36,SS400,S235JR,S355JR)