目前我国液、气、密行业的的企业生产规模小,不能形成经济规模,为此机械部决定“九五”期间重点发展影响大的产品。这些产品是中高压液压元件及重大成套系统;引进技术或国内新开发的高水平的气阀.气缸;橡塑密封件。争取到“九五”末,液、气、密行业的主导产品性能指标有40—50 At present, the enterprises of liquid, gas and dense industries in our country have a small scale of production and can not form an economic scale. To this end, the Ministry of Machinery has decided to focus on the development of products of great influence during the Ninth Five-year Plan period. These products are high-pressure hydraulic components and major complete sets of systems; the introduction of technology or the newly developed domestic high-level valve. Cylinder; rubber seals. Strive for the end of “Nine Five”, liquid, gas, dense industry leading performance indicators have 40-50