A pipe that is coated with high-functioning PE resin, giving it a low friction coefficient. The knurled surface also gives it excellent sliding properties. Also enables the user to keep costs down while moving the work pieces short distances, etc.[Features]· The pipe is made of molten zinc plated steel which helps protect against rust and is closely coated with high-functioning plastic.· User friendly, excellent in rust-proofing effects, weather resistance, and durability.