73061100

WELDED, OF STAINLESS STEEL

73061911

GALVANISED PIPE OF IRON FOR OIL OR GAS

73061919

OTHER

73061921

NON-GALVAN PIPE OF IRON FOR OIL OR GAS

73061929

NON-GALVAN PIPE OF OTHER FOR OIL OR GAS

73062100

WELDED, OF STAINLESS STEEL

73062911

OTHER CASING&TUBING USED IN DRILING FOR OIL OR GAS MADE UP OF IRON

73062919

OTHER

73063010

OTHER,WELDED,OF CIRCULAR CROSS-SECTION, MADE UP OF OF IRON TUBE/PIPES

73063090

OTHER,WELDED,OF CIRCULAR CROSS-SECTION, MADE UP OF OF NON-ALLY STEEL TUBE/PIPES

73064000

OTHER,WELDED,OF CIRCULAR CROSS-SECTION, OF STAINLESS STEEL TUBES/PIPES

73065000

OTHER,WELDED,OF CIRCULAR CROSS-SECTION, OF OTHER ALLOY STEEL TUBE/PIPES

73066100

OF SQUARE OR RECTANGULAR CROSS-SECTION:

73066900

OF OTHER NON-CIRCULAR CROSS-SECTION

73069011

ERW PRECISION OTHER TUBES MADE UP OF IRON

73069019

ERW PRECISION OTHER TUBES MADE UP OF OTHER

73069090

OTHER TUBES,PIPES ETC.OF IRON/STEEL N.E.S.