H-BEAM WIDE FLANGE USE AS CONSTRUCTION WORK PILLAR, BEAM AND TRUSS STRUCTURE. H-BEAM WIDE FLANGE USE AS CONSTRUCTION WORK PILLAR, BEAM AND TRUSS STRUCTURE.H-BEAM WIDE FLANGE USE AS CONSTRUCTION WORK PILLAR, BEAM AND TRUSS STRUCTURE.H-BEAM WIDE FLANGE USE AS CONSTRUCTION WORK PILLAR, BEAM AND TRUSS STRUCTURE. Previous Next Interested to order Dealers SYS Download Catalog Thai Standard Download Catalog International Standard