9028200000 under HS Code GAS, LIQUID OR ELECTRICITY SUPPLY OR PRODUCTION METERS, INCLUDING CALIBRATING METERS THEREFOR LIQUID METERS, 9028909000 under HS Code GAS, LIQUID OR ELECTRICITY SUPPLY OR PRODUCTION METERS, INCLUDING CALIBRATING METERS THEREFOR - PARTS AND ACCESSORIES : OTHER, and 8421290009 under HS Code CENTRIFUGES, INCLUDING CENTRIFUGAL DRYERS; FILTERING OR PURIFYING MACHINERY AND APPARATUS, FOR LIQUIDS OR GASES FILTERING OR PURIFYING MACHINERY AND APPARATUS FOR LIQUIDS: OTHER were the top imported HS Codes by DARKONT LLC in 2021.