From the perspective of the production of various provinces and cities, December 1, 2011, jiangsu output reaching 47.115 million kilometers of fiber optical cable, year-on-year growth of 40.46%, accounting for 34.15% of the total national output. Followed by the zhejiang, guangdong and hubei, respectively accounted for 19.94%, 9.65% and 8.04% of total output.