That is standard chain for B duplex chain china series with duplex.
The majoy material of Standard Chain are SUS304, SUS310, SUS316. They have the characteristics of high power, 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 groups: Stainless steel chain and carbon steel chain.
We’ve established a nationwide sales net work and the products have been sold to the countries and areas in European countries and America, Central and South Africa and also South-east Asia, which are very popular among customers.