Tengzhou Star Smith Metal Products Co., Ltd(SDS). mainly produces reinforced glued steel fiber and other related products. It’s the largest private enterprise in China that first developed domestic market. Total investment of 50 million RMB, the first phase plant was built and put into production in 2012, with an annual production scale of 10, 000 tons of reinforced steel fiber for concrete. It is the top three enterprises specializing in the steel fiber production in China.With a full set of independent research and development of production equipment and technology, SDS has been awarded number of national patents.