shanghai sinfee trade co.,ltd.is one of the biggest converyor and transimission chain manfucturers in china.it's a member of the chain association of china and the standardaized chain committed in china.the double gorcebrand of a,b series standard roller chains and bush chains are our main products.we specially capable on manufacturing non-standard chains,special chains and sprocket,and also could be design,manufacture many kinds of product line as customer's request. as a well-experienced chains importer, you will look for the qualified products at lowest possible prices.our company have been working in the field of chains since 1981 and monthly capacity is ten million pieces.we can offer the most competitive prices if you are interested in our products. short pitch transmission precision roller chains(a series) short pitch transmission precision roller chains(heavy.series) short pitch transmission precision roller chains(b series) roller chains with straight side plates(a series) short pitch precision roller chain conveyor attachments double pitch roller chains for transmission and conveyors double pitch precision roller chain conveyor attachments short pitch transmission precision bush chains heavy-duty cranked-link transmission chains motorcycle chains inverted tooth chains elevate and convery chains of building materials industry hollow pin chains welded steel type cranked link mill chains steel roller chains,types s and c escalator step chains agriculture and timber roller chains for conveyor metallurgy industry chains cool-draw chains leaf chains bearing roller conveyor chains coupling chains go to our website see the detail: http://chain20062008.icpcn.com