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That is standard chain for B series with duplex.
The majoy materials of Standard Chain are SUS304, SUS310, SUS316. They possess the characteristics of high strength, 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 classes: Stainless chain and carbon metal chain.
We have established a nationwide sales net function and the products have already been sold to the duplex chain china countries and areas in Europe and America, Central and Southern Africa in addition to South-east Asia, which are quite popular among customers.