... research and design in all kind of railway wagon springs and all kinds of special ... Our company begin to produce spring parts of railway Vehicle since1988.Now we has researched and ... . such 8A,8AG,K2,K4,K5,K6,MCZW5,D5,Etc. And foreign railway wagon such as steering ... all products has passed certificate by railway department. Which specialize in railway wagon, now our company production capacity ...