HSN CodeHSN Description

3810Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding;soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods

7308Structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge-sections, lock-gates, towers, lattice masts, roofs, roofing frameworks, 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

8468Machinery and apparatus for soldering, brazing or welding whether or not capable of cutting, other than those of heading 8415; gas-operated surface tempering machines and appliances

8515Electric (including electrically heated gas), laser or other light or photo beam, ultrasonic, electron beam, magnetic pulse or plasma arc soldering, brazing or welding machines and apparatus, whether or not capable of cutting; electric machines and apparatus for hot spraying of metals or cermets