84099990 under HS Code PARTS SUITABLE FOR USE SOLELY OR PRINCIPALLY WITH THE ENGINES OF HEADING 8407 OR 8408 - OTHER : OTHER : OTHER, 84818090 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 - OTHER APPLIANCES: OTHER, and 84821090 under HS Code BALL OR ROLLER BEARINGS - BALL BEARINGS - THRUST BALL BEARINGS :OTHER were the top imported HS Codes by PRIME ENGINEERINGS in 2021.