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 and 73269099 under HS Code OTHER ARTICLES OF IRON OR STEEL - OTHER : OTHER : OTHER were the top imported HS Codes by S TANK ENGINEERING CO LIMITED SUBCONTRACTOR FOR SPHERICAL STORAGE TANK A2 CONTRACTOR FOR SOUTHERN VIETNAM in 2021.