3816000000 under HS Code REFRACTORY CEMENTS, MORTARS, CONCRETES AND SIMILAR COMPOSITIONS, OTHER THAN PRODUCTS OF HEADING 3801, 7202993000 under HS Code Others, and 9025900008 under HS Code HYDROMETERS AND SIMILAR FLOATING INSTRUMENTS, THERMOMETERS, PYROMETERS, BAROMETERS, HYGROMETERS AND PSYCHROMETERS, RECORDING OR NOT, AND ANY COMBINATION OF THESE INSTRUMENTS PARTS AND ACCESSORIES were the top imported HS Codes by AUTOCOMPANENTS GAZ GROUP LLC in 2021.