Tianrun Crankshaft Co., Ltd is a China-based company principally engaged in manufacture and distribution of automobile spare parts. The Company's major products are heavy engine crankshafts, light engine crankshafts, medium engine crankshafts and other products. Its products are applied in the manufacture of heavy-duty vehicles and engineering vehicle. The Company distributes its products in domestic and overseas markets. As of December 31, 2010, the Company had one subsidiary, which involved in the processing of automobile spare part roughcasts.

Tianrun crankshaft Co., LTD. Is the production "day" brand engine crankshaft products led the China's largest professional production enterprise one of the crankshaft. Since 1985, the enterprise all the technical and economic indexes always ranks the same line.
The company existing staff 2000 DuoRen, all kinds of professional and technical personnel 400 DuoRen, the factory covers an area of 366000 square meters, with total assets of 1.47 billion yuan. The company has the national industry first "crankshaft engineering technology research center", "national postdoctoral research stations", "the technical center", is "the national 863 plan cims engineering application example enterprise", "high and new technology enterprise", "China's best spare parts suppliers," China auto parts of top enterprises ", "the Chinese public good credit enterprise", "China top enterprise education advanced unit", "good faith demonstration enterprise in shandong province, the first" continuous DuoNian won the "provincial civilized unit" title. The company has passed the iso9002, qs9000, ts16949 international quality system authentication.
The company has the main production equipment 1130, metal-cutting equipment 790, 125 sets of advanced equipments; Has an annual output of 500000 pieces of blank crankshaft German kw casting lines, and 150000 talents of Germany beche forging production line, Austria gas soft nitriding crankshaft production line and the German car crankshaft production line, and by the United States, Italy, Britain, Germany and other developed countries advanced machining and inspection equipment formed, with the international advanced level in the heavy CARDS, CARDS, light trucks and cars in the crankshaft production line and bilge broken machining connecting rod, annual output of crankshaft forging steel production line, nodular cast iron crankshaft more than pieces.
Production of "day" brand crankshaft identified as "China famous brand product", and be recognized as weichai, dongfeng cummins, saic, faw wood, wood, and big tin yuchai, wood, and, on such domestic famous manufacturers preferred measuring machine supporting products, and with the host sold far to 20 countries and regions, DuoGe part series model and casting products are exported directly, South Korea, India, Turkey, Britain, Italy, Japan and the United States, and foreign famous company. Day embellish the company has perfect marketing network system, and set up more than 200 domestic regional key agent and monopoly home business, products cover the 31 provinces, the leading product market share of more than 30%.