73072300 under HS Code TUBE OR PIPE FITTINGS (FOR EXAMPLE, COUPLINGS, ELBOWS, SLEEVES), OF IRON OR STEEL - OTHER, OF STAINLESS STEEL : BUTT WELDING FITTINGS, 73072100 under HS Code TUBE OR PIPE FITTINGS (FOR EXAMPLE, COUPLINGS, ELBOWS, SLEEVES), OF IRON OR STEEL - OTHER, OF STAINLESS STEEL : FLANGES, and 73041110 under HS Code TUBES, PIPES AND HOLLOW PROFILES, SEAMLESS, OF IRON (OTHER THAN CAST IRON) OR STEEL - LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES : -- OF STAINLESS STEEL: --- TUBES AND PIPES. were the top exported HS Codes by OSHWIN OVERSEAS in 2023.