73079990 under HS Code TUBE OR PIPE FITTINGS (FOR EXAMPLE, COUPLINGS, ELBOWS, SLEEVES), OF IRON OR STEEL - OTHER : OTHER : OTHER, 73269099 under HS Code OTHER ARTICLES OF IRON OR STEEL - OTHER : OTHER : OTHER, and 82081000 under HS Code KNIVES AND CUTTING BLADES, FOR MACHINES OR FOR MECHANICAL APPLIANCES - FOR METAL WORKING. were the top exported HS Codes by HA SON TECHNOLOGY AND TRADING COMPANY LIMITED in 2023.