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