The rapid development of agriculture, water conservancy, energy, transportation and other industries in our country requires a large amount of mechanical equipment to meet their development needs. With the improvement of industrialization and automation level, these equipment require a large number of high-performance and high reliability hydraulic, pneumatic and sealing components to be matched. Preliminary estimates suggest that the total demand for hydraulic, hydraulic, pneumatic, and sealing products in China is expected to increase from 20 billion yuan in 2005 to approximately 35 billion yuan by 2012. Among them, hydraulic products increased from over 10 billion yuan to 20 billion yuan, hydraulic products increased from over 1 billion yuan to over 2 billion yuan, pneumatic products increased from nearly 3 billion yuan to over 5 billion yuan, and sealing products increased from over 3 billion yuan to 7 billion yuan.

Among them, construction machinery is the largest user of hydraulic products, accounting for 42.3% of industry sales, and the proportion will continue to expand in the future. It is estimated that by 2010, the annual demand for hydraulic excavators will reach about 60000 to 80000 units, loaders about 100000 to 120000 units, graders about 2000 units, rollers about 15000 units, construction cranes about 20000 units, and forklifts about 80000 units. In addition, China currently has about 1.4 million construction machinery units, and it is expected to reach 2 million units by 2010.

It is also reported that the imported hydraulic components for excavators, road machinery, cement mixers, and other supporting equipment produced for domestic enterprises each year amount to over 150 million US dollars. In short, the market for hydraulic and sealing components used in the matching and maintenance of construction machinery will face a new era of great development.