73090090 under HS Code RESERVOIRS, TANKS, VATS AND SIMILAR CONTAINERS FOR ANY MATERIAL (OTHER THAN COMPRESSED OR LIQUEFIED GAS), OF IRON OR STEEL, OF A CAPACITY EXCEEDING 300 L, WHETHER OR NOT LINED OR HEAT-INSULATED, BUT NOT FITTED WITH MECHANICAL OR THERMAL EQUIPMENT - RESERVOIRS, TANKS, VATS AND SIMILAR CONTAINERS FOR ANY MATERIAL (OTHER THAN COMPRESSED OR LIQUEFIED GAS), OF IRON OR STEEL, OF A CAPACITY EXCEEDING 300 L, WHETHER OR NOT LINED OR HEAT-INSULATED, BUT NOT FITTED WITH MECHANICAL OR THERMAL EQUIPMENT : OTHER, 84199090 under HS Code MACHINERY, PLANT OR LABORATORY EQUIPMENT, WHETHER OR NOT ELECTRICALLY HEATED (EXCLUDING FURNACES, OVENS AND OTHER EQUIPMENT OF HEADING 8514), FOR THE TREATMENT OF MATERIALS BY A PROCESS INVOLVING A CHANGE OF TEMPERATURE SUCH AS HEATING, COOKING, ROASTING, DISTILLING, RECTIFYING, STERILISING, PASTEURISING, STEAMING, DRYING, EVAPORATING, VAPORISING, CONDENSING OR COOLING, OTHER THAN MACHINERY OR PLANT OF A KIND USED FOR DOMESTIC PURPOSES; INSTANTANEOUS OR STORAGE WATER HEATERS, NON-ELECTRIC - PARTS: OTHER, and 84818030 under HS Code TAPS, COCKS, VALVES AND SIMILAR APPLIANCES FOR PIPES, BOILER SHELLS, TANKS, VATS OR THE LIKE, INCLUDING PRESSURE-REDUCING VALVES AND THERMOSTATICALLY CONTROLLED VALVES - OTHER APPLIANCES: INDUSTRIAL VALVES (EXCLUDING PRESSURE-REDUCING VALVES, AND THERMOSTATICALLY CONTROLLED VALVES). were the top exported HS Codes by KBK CHEM ENGINEERING PRIVATE LIMITED in 2024.