【正文】
s market place . Overall capacity, is already in oversupply situation, in particular the general low level of hydraulic, pneumatic and seals, the general oversupply。 (2) the number of enterprises manufacturing technology, the level of equipment and management standards are paratively backward, coupled with a strong sense of quality, resulting in low levels of product performance, quality, Reliability poor services in a timely manner, lack of user satisfaction and trust of the brandname products。 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。 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)。s annual output of hydraulic ponents have nearly 200,000 in 1973, machine tools, agricultural machinery, mechanical engineering industries, the production of hydraulic parts factory has been the professional development of more than 100 and an annual output more than one million. an independent hydraulic manufacturing industry has begun to take shape. Then, hydraulic pieces of fake products from the Soviet Union for the introduction of the product development and technical design bining the products to the pressure, Hypertension, and the development of the electrohydraulic servo valves and systems, hydraulic application areas further expanded. Aerodynamic than the start of the industrial hydraulic years later, in 外文資料翻譯 3 1967 began to establish professional pneumatic ponents factory, Pneumatic Components only as modity production and sales. Sealed with rubber and plastics, mechanical seals and sealing flexible graphite sealing industry, the early 1950s from the production ordinary Orings. rubber and plastics extrusion, such as oil seal sealing and seal asbestos products start to the early 1960s, begun production of mechanical seals and flexible graphite sealing products. 1970s, the burning of the former Ministry, a Ministry, the Ministry of Agricultural Mechanization System, a group of professional production plants have been established, and the official establishment of industries to seal industrial development has laid the foundation for growth. Since the 1980s, in the country39。 6039。在我國加入 WTO 后,其沖擊有可能更大。為了為了避免電流不平衡導(dǎo)致破壞原有的