10025-2 S275JR S355 S235 A572 Grade Hot Rolled 50 150x150 construction Mild metal Steel C Channel U channel Galvanized Steel c Channel

10025-2 S275JR S355 S235 A572 Grade Hot Rolled 50 150×150 construction Mild metal Steel C Channel U channel Galvanized Steel c Channel

ASTM A36 S355JR  Q345 marine steel C channel UPN U channel steel profile for construction