1.Hubei Tri-ring Forging is the biggest manufacturer of steering knuckle for medium and heavy-duty trucks & buses in China, accounts market share of 52% in China.Annual capacity of 110000 tons of forgings, including four million knuckles, two million steering arms. 2.Development milestones.                                                    Tri-Ring Forging was founded in 1961.                                                    In 1992, we started to manufacture steering knuckles, and we have nearly 30 years of experience in manufacturing steering knuckles.                                                                                         In 2005, our products are developing toward internationalization, and we have established strategic cooperation with India Tata, Daimler America, Daimler AG, DAF, ZF and other international famous brands.                                           3.Manufacturing Capacity.                                                   - 20 Tooling-making production lines(8new£©                                           - 20 Forging production lines (5new)                                                    - 15 Heat treatment production lines                                                  - 31 Machining production lines(3 new)                                                   - 6 Painting & Packaging production lines