company named Hangzhou dongteng industry co,ltd. We are manufacturer specializes in the production of roller chain,conveyor chain .double plus chain,leaf chain, agriculture chain, industrial chain ,standard non-standard chains , we also can be customer-made ,we can offer you lowest price and high quality products give you the competitive edge in the market ,i think if you need our chains in the future please don’t hesitate to contact me i will do my best to serve you