Craft projects to make using Piping Tube sA tube, or tubing, is a long hollow cylinder used for moving fluids or to protect electrical or optical cables and wires. The terms "pipe" and "tube" are almost interchangeable, although minor distinctions exist — generally, a tube has tighter engineering requirements than a pipe. Both pipe and tube imply a level of rigidity and permanence, whereas a hose is usually portable and flexible. A tub... From Wikipedia
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