3206110000 under HS Code Others, 3204170000 under HS Code Others, and 7310291000 under HS Code TANKS, CASKS, DRUMS, CANS, BOXES AND SIMILAR CONTAINERS, FOR ANY MATERIAL (OTHER THAN COMPRESSED OR LIQUEFIED GAS), OF IRON OR STEEL, OF A CAPACITY NOT EXCEEDING 300 L, WHETHER OR NOT LINED OR HEATINSULATED, BUT NOT FITTED WITH MECHANICAL OR THERMAL EQUIPMENT - OF A CAPACITY OF LESS THAN 50 L : OTHER : TIN PLATE CONTAINERS were the top imported HS Codes by WAREHOUSE TRANSPORTATION SYSTEMS LLC in 2021.