Lean pipe, also known as wire rod, is a welded steel pipe coated with plastic resin; To prevent the coating from separating from the steel pipe, a special adhesive is used between them; The lean pipe has an anti-corrosion coating on the inner wall; The standard lean pipe material has an outer diameter of 28mm, and the wall thickness of steel pipes is generally 0.8mm, 1.0mm, 1.2mm, 1.5mm, and 2.0mm; The standard colors for the surface of lean pipes are milky white and beige, but other colors can also be customized. The production of lean tube flexible systems adopts a variety of workstation tools composed of lean tubes (wire rods) and a wide range of connectors, which are widely used in factories in industries such as home appliances, automobiles, light industry, and electronics. They are essential tools for logistics integration.