HS Code	Commodity Description
7507	NICKEL TUBES, PIPES AND TUBE OR PIPE FITTINGS (FOR EXAMPLE, COUPLINGS, ELBOWS, SLEEVES)
750711	TUBES AND PIPES OF NICKEL,NOT ALLOYED
750712	TUBES AND PIPES OF NICKEL ALLOYS
750720	TUBES OR PIPE FITTINGS
75071100	TUBES & PIPES OF NICKEL,NOT ALLOYED
75071200	TUBES & PIPES OF NICKEL ALLOYS
75072000	TUBES OR PIPE FITTINGS