tubes, pipes and hollow profi
structures and parts of struc
pipes, tubes and hollow profi
containers for compressed or
pipes, tubes and hollow profi
reservoirs, tanks, casks, vat
equipment for scaffolding, sh
doors, windows and frames and
tubes, pipes and hollow profi
pipes, tubes and hollow profi
tanks, casks, drums, cans, bo
pipe or tube fittings, nesoi,
pipe or tube fittings, nesoi,
tanks, drums, cans, and simil
pipes and tubes nesoi, extern
line pipe for oil and gas pip
bridges and bridge sections o
pipes, tubes and hollow profi
line pipe for oil and gas pip
casing and tubing of a kind u
pipe or tube fittings, cast,
towers and lattice masts of i
pipe or tube fittings, nesoi,
casing & tubing used in drill
tubes, pipes and hollow profi
pipe or tube fittings, cast,
pipe or tube fittings, nesoi,
line pipe for oil or gas pipe
pipe or tube fittings, nesoi,
line pipe for oil or gas pipe
tubes, pipes and hollow profi
drill pipe of a kind used in
tubes, pipes and hollow profi
pipe or tube fittings, nesoi,