Product Description
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 power, high wear level of resistance and long life.
We’ve several rows chains for your needs.
Twin track is a professional producer of roller chain. There are two main categories: Stainless steel chain and carbon metal chain.
We have established a nationwide product sales net work and the 
duplex chain china products have been sold to the countries and areas in European countries and America, Central and Southern Africa and also South-east Asia, which are very popular among customers.