duplex chain china product Description
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 power, high wear level of resistance and long life.
We have several rows chains for your needs.
Twin monitor is a professional manufacturer of roller chain. There are two main types: Stainless chain and carbon steel chain.
We have established a nationwide product sales net function and the products have already been sold to the countries and areas in Europe and America, Central and South Africa as well as South-east Asia, which are very popular among customers.