Yung Yi Li Co., Ltd. was established in 1988, special for manufacturing air expanding shaft, air expanding chuck, and safety chuck. The range of application for our products is very widely. You can see it mounting on the rotary equipments of textile, paper, film, foil, and plastic for manufacturing such as printing machine, laminator, coating machine, slitter, bag making machine, and re-winder. Because it is widely for the range of applicable manufactures, the use conditions are different for various equipments. We design and make it to be suitable for customer requirements. From research, design, process, assembly, quality control, product test, and delivery, we make the full schedule at our factory. We use the shortest time and efficient working schedule to finish it. At the same time, we guarantee the quality and precision of the products and the service.