DF3498 Chain is made to rotate on two planes and travel in multiple directions with a huge sliding surface, making it a perfect chain for an extremely wide variety of applications. The look of the chain allows maximum flexibility so the chain can travel around obstacles and actually corners. This DF3498 chain is manufactured with high-quality steel and features hardened pins, bearing areas, and sliding surfaces to dramatically boost the strength and operation life of the chain. competitive price directly from stock, in addition to a full type of high-quality DF3498 chain sprockets. There are additional options and configurations available for dual flex chain upon demand. For more double flex chain china information on DF3498 chain or other products you can expect, or to get a quote please contact us and we will be happy to assist you