84529099 under HS Code OTHER, 73181510 under HS Code Others, and 73182200 under HS Code SCREWS, BOLTS, NUTS, COACH-SCREWS, SCREW HOOKS, RIVETS, COTTERS, COTTER-PINS, WASHERS (INCLUDING SPRING WASHERS) AND SIMILAR ARTICLES, OF IRON OR STEEL - NON-THREADED ARTICLES : OTHER WASHERS were the top imported HS Codes by A CHAU CONSULTING AND TRADING IMPORT EXPORT COMPANY LIMITED in 2021.