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