Chain scraper conveyor chain can be used to transport bulk materials horizontally, obliquely and vertically. It is often used for the transportation of raw grain, semi-finished products and finished products in grain and oil processing plants. And grain warehouses. It has the advantages of simple structure, good tightness, simple loading and unloading device, multiple points of loading and unloading, flexible layout, and material transportation in multiple directions at the same time. The scraper conveyor chain uses medium carbon quenched and tempered steel and cold heading die steel. The steel is moderately priced and easy to process. After proper heat treatment, certain toughness, plasticity and wear resistance can be obtained. Normalizing Division promotes spheroidization of the structure, suitable for surface hardening treatment such as high-frequency quenching and flame quenching. Application: After quenching and tempering, it is used to manufacture medium-load and medium-speed work