84812090 under HS Code Others, 40092190 under HS Code Others, and 84819090 under HS Code TAPS, COCKS, VALVES AND SIMILAR APPLIANCES FOR PIPES, BOILER SHELLS, TANKS, VATS OR THE LIKE, INCLUDING PRESSURE-REDUCING VALVES AND THERMOSTATICALLY CONTROLLED VALVES - PARTS : OTHER were the top imported HS Codes by NAM DUONG TECHNICAL COMPANY LIMITED in 2021.