BAR : DEFORMED, FLAT, ROUND, SQUARE STEEL STRUCTURAL SHAPE : ANGLE, HONEY COMB, CHANNEL, H SECTION, I SECTION, LIP CHANNEL, FILLING STEEL PLATE : SHEET, CHECKERED, STRIP. ROOF : SHEETING, TILE, TRUSS, WALL, SANDWICH PANEL, BRIDGE DECK, FLOOR DECK, ROOF ACESSORIES WIRE : WIRE MESH, CHAIN LINK, GABION, POULTRY NETTING, BARBED, RAZOR. PIPE : RECTANGULAR, ROUND, SQUARE