Wire rod rack: welded steel joint with plastic resin coating. In order to prevent coating from separating from steel pipe, special adhesives are used between them. The inner wall of steel pipe is a corrosion resistant coating. Wire rod rack: It consists of wire rod (also known as plastic coated pipe) and connecting parts; it is light weight, strong, clean, wear-resistant, easy to process, and adapts to different sizes and shapes; the need for improvement is in line with ergonomics principles, so that field workers can operate accurately and comfortably, and quickly realize the concept and creation of the environment. It has been widely used in household appliances, automobiles, light industry and electronics factories, and integrated in logistics. Basic tools.