HSN CodeHSN Description

7307Tube or pipe fittings (for example, couplings, elbows, sleeves), of iron or steel

8416Furnace burners for liquid fuel, for pulverised solid fuel or for gas; mechanical stokers, including their mechanical grates, mechanical ash dischargers and similar appliances

8481Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves

9026Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032

7306Other tubes, pipes and hollow profiles (for example, open seam or welded, riveted or similarly closed), of iron or steel