Suspension conveyor line, suspension pipeline structure has C-type closed rail and die forging open type. The closed rail suspension chain bears relatively light weight, and the die forging open type is relatively heavy. The larger the pitch, the heavier the load. With stable operation, high efficiency, large bearing capacity, and low failure rate for continuous operation, the assembly line can turn and climb at will, and can adapt to various geographical conditions. It is widely used in product assembly, material supply, drying, cleaning, spraying and other industries .