730512 | PIPES FOR OTHER oil and gas pipelines Welded straight |
73051211 | OTHER TUBES AND PIPES (FOR EXAMPLE, WELDED, RIVETED OR SIMILARLY CLOSED), HAVING CIRCULAR CROSS-SECTIONS, THE EXTERNAL DIAMETER OF WHICH EXCEEDS 406.4 MM, OF IRON OR STEEL - LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES : OTHER, LONGITUDINALLY WELDED : GALVANISED PIPES : OF IRON |
73051219 | OTHER TUBES AND PIPES (FOR EXAMPLE, WELDED, RIVETED OR SIMILARLY CLOSED), HAVING CIRCULAR CROSS-SECTIONS, THE EXTERNAL DIAMETER OF WHICH EXCEEDS 406.4 MM, OF IRON OR STEEL - LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES : OTHER, LONGITUDINALLY WELDED : GALVANISED PIPES : OTHER |
73051221 | OTHER TUBES AND PIPES (FOR EXAMPLE, WELDED, RIVETED OR SIMILARLY CLOSED), HAVING CIRCULAR CROSS-SECTIONS, THE EXTERNAL DIAMETER OF WHICH EXCEEDS 406.4 MM, OF IRON OR STEEL - LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES : OTHER, LONGITUDINALLY WELDED : NON-GALVANISED PIPES : OF IRON |
73051229 | OTHER TUBES AND PIPES (FOR EXAMPLE, WELDED, RIVETED OR SIMILARLY CLOSED), HAVING CIRCULAR CROSS-SECTIONS, THE EXTERNAL DIAMETER OF WHICH EXCEEDS 406.4 MM, OF IRON OR STEEL - LINE PIPE OF A KIND USED FOR OIL OR GAS PIPELINES : OTHER, LONGITUDINALLY WELDED : NON-GALVANISED PIPES : OTHER |