That is standard chain for B series with duplex.
The majoy material of Standard Chain are SUS304, SUS310, SUS316. They possess the characteristics of high strength, high wear resistance and long life.
We’ve several rows chains for your needs.
Twin track is a professional manufacturer of roller chain. There are two main classes: Stainless steel chain and carbon steel chain.
We have established a nationwide product sales net work and the products have already been sold to the countries and regions in Europe and America, duplex chain china Central and Southern Africa and also South-east Asia, which are quite popular among customers.