【正文】
further opening up, threefunded enterprises rapid development of industry standards for improving and expanding exports play an important role. Today, China has and the United States, Japan, Germany and other countries famous manufacturers joint ventures or whollyowned by foreign manufacturers to establish a piston pump / motor, plaary reduction gears, steering gear, hydraulic control valve, hydraulic system, hydr ostatic transmission, hydraulic Casting. pneumatic control valve, cylinder, gas processing triple pieces, mechanical seals, rubber and seal products more than 50 production enterprises, attracting foreign investment over 200 million . dollars. the current situation Profiles After 40 years of efforts, China hydraulic, pneumatic and sealing industry has formed a relatively plete categories. a certain level of technical capacity and the industrial system. According to the 1995 Third National Industrial Census statistics, hydraulic, Pneumatic seals and industrial 370,000 annual sales ine of 100 million yuan in stateowned, villagerun, private and cooperative enterprises, individual, three capital enterprises with a total of more than 1,300, of which about 700 hydraulic, Pneumatic seals and the approximately 300 thousand. By 1996 with the international trade statistics, the total output value of China39。s industry hydraulic billion yuan, accounting for the world39。s 6。 Pneumatic industry output 419 million yuan, accounting for world No. 10. the current supply and demand profiles Through the introduction of technology, independent development and technological innovation, and highpressure piston pump, gear pumps, vane pump, General Motors hydraulic valves, tanks, Nonlubricated aerodynamic pieces and various seals of the first large technology products has increased 外文資料翻譯 5 noticeably. stability of the mass production may, for various mainframe products provide a level of assurance. In addition, hydraulic and pneumatic ponents of the CAD system, pollution control, proportional servo technology has scored some achievements, and is already in production. Currently, hydraulic, pneumatic and seals products total about 3,000 species, more than 23,000 specifications. Among them, there are 1,200 hydraulic varieties, more than 10,000 specifications (including hydraulic products 60 varieties 500 specifications)。 Pneumatic are 1,350 varieties, more than 8,000 specifications。 Rubber seal 350 species more than 5,000 specifications have been basically cater to the different types of mainframe products to the general needs, plete sets of equipment for major varieties of matching rate was over 60%, and started a small amount of exports. 1998 pieces of homemade hydraulic output million. sales of about 28 billion (of which about 70% mechanical systems)。 aerodynamic pieces yield million. sales of about billion (of which about 60% of mechanical systems)。 Seals output of about 800 million. sales of about 10 billion (of which about 50% mechanical systems). According to the China Hydraulic Pneumatic Seals Industry Association 1998 annual report, hydraulic product sales rate of 97. 5% (101% for hydraulic), pneumatic %, % sealed. This full y reflects the basic marketing convergence. My hydraulic, pneumatic and sealing industry has attained a great deal of progress, but with mainframe development needs, and the world39。s advanced level, there are still many gaps, mainly reflected in the product variety, performance and