Hunan zhongda machinery manufactury co., LTD founded in June 2004, with 36 billion yuan registered capital , is a private-owned high-tech enterprises , which can design ,manufacture, sell and rent high-tech road construction machinery products. The company was located on Hunan liuyang manufacturing industry base, with vital economic , developed information and communicated transportation . Company has existing staff  260people, including more than college or higher education 87, doctor 2, master 5, high, intermediate technical title of the technical staff 21. Company covers an area of 530 million square meters, plant area of 200 million square meters, scientific research building area of 60 million square meters, owns more than one hundred all kinds of testing equipments and machining .
The company owns all kinds of products, such as YZ32 auto vibrating roller, ?YZC13/17 double-drum vibratory roller, DT1600 multifunctional paver, YD12 Oscillating roller, YL37 rubber-tyred roller. Inside,  the YZ32 super-tonnage and high-technology product with the features of fully-hydraulic all-wheel driving and self-moving roller and the DT1600 multifunctional paver are the biggest one in the like domestic product, which has 2 invention patents, 11 utility model patents, and fills in the home gaps in some respects.
Since 2007, the company was identified as high-tech enterprises. In 2009, the company was identified as Changsha city enterprise technology center. In 2010, companies participated in the national electromechanical products remanufacturing pilot work, and was recognized as one of the remanufacturing pilot unit by the ministry of industry. In 2011, the company response to the government two type society construction of changsha, is rated as one of two type society construction demonstration enterprise. In 2012, the company was rated as small and medium-sized enterprise intellectual property strategy propulsion engineering for the first batch of pilot enterprises .