Color:

National standard round pipe 165 diameter

220 diameter of circular pipe

National standard round pipe 220 pipe diameter reinforcement

National standard square pipe 150 pipe diameter

National standard square pipe 180 pipe diameter

National standard square pipe 200 pipe diameter

National standard double-flying square tube 150 diameter

National standard double-flying square tube 180 diameter

National standard double-flying square tube 200 diameter

Liftable square pipe 150 pipe diameter

Liftable square pipe 180 pipe diameter

Liftable square pipe 200 pipe diameter

New American buried [without sheath]]

New American buried [with sheath]]