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