73182910 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 : CIRCLIPS, 70191100 under HS Code GLASS FIBRES (INCLUDING GLASS WOOL) AND ARTICLES THEREOF (FOR EXAMPLE, YARN, WOVEN FABRICS) - SLIVERS, ROVINGS, YARN AND CHOPPED STRANDS : CHOPPED STRANDS, OF A LENGTH OF NOT MORE THAN 50 MM, and 74153320 under HS Code Others were the top imported HS Codes by ABC TECH VINA CO LTD in 2021.