The drive chain which our company developed for the swamp Operation Equipment is design and manufacture to adapt to work on the swamp, floodplain, salt marshes and other special complicated surface areas. The Walking Crawler board on the equipment is connected with the curved plate on the chain inner links, it can withstand greater gravity. After carburizing and hardening the bush and roller surface, due to the perfect match between surface stiffness and core toughness, the appropriate movement clearance between each components and the hot riveting structure of the pin end, it not only ensure the chain operates freely under the complex working conditions, but also maintains the basic function of the chain in case of severe corrosion on chain components.