In recent years, China's agriculture, water conservancy, energy, transportation and other industries faster, this requires a lot of machinery and equipment to meet their development needs. With the industrialization and automation level, the equipment need to support a large number of high-performance and high reliability of hydraulic pneumatic and sealing components. Preliminary estimates, estimated that by 2010 domestic hydraulic, hydraulic, pneumatic and sealing products, the total demand will be increased to 200 billion in 2005 to about 350 million. Among them, the hydraulic products from 100 billion to 200 billion yuan, hydraulic products from more than 10 billion to 20 billion, pneumatic products from nearly 30 billion to more than 50 million products from more than 30 million sealed Million to 70 million.

     Construction machinery is one of the biggest users of hydraulic products, industry sales accounted for 42.3, the proportion will increase in future. It is estimated that by 2010 the demand for hydraulic excavators about 60,000 ~ 80,000 units, loaders about 10 million to 12 million units, about 2,000 units graders, road rollers about 1.5 million units, about 2 million units of cranes, Forklift about 8 million units. In addition, China now has about 140 million units of construction machinery is expected to reach 200 million units by 2010.

     Annual domestic production of excavators, road machinery, cement mixer and other assorted imported hydraulic parts, about 1.5 billion U.S. dollars. In short, support for construction machinery, maintenance of hydraulic and seals the market will face a new period of great development.