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HSN CodeHSN Description

73012090Sheet piling of iron or steel, whether or not drilled, punched or made from assembled elements; welded angles, shapes and sections, of iron or steel - angles, shapes and sections : other

73071110Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel - cast fittings : of non-malleable cast iron : sponge iron cast fittings

73081000Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge-sections, lock-gates, towers, lattice masts, roofs, roofing frame-works, doors and windows and their frames and thresholds for doors, shutters, balustrades, pillars and columns), of iron or steel; plates, rods, angles, shapes, sections, tubes and the like, prepared for use in structures, of iron or steel - bridges and bridge-sections