论文部分内容阅读
贵州省贵阳矿山机器厂生产的强力牌w4-60型轮胎式液压挖掘机,最近荣获国家一九八一年银质奖章和优质产品证书.这个产品是七十年代初期该厂与八九○○一研究所共同设计研制的,样机经过较长时间的工业性试验验证后,于一九七四年提请国家鉴定定型通过,获准投入成批生产,目前产量约占全国液压挖掘机总产量的一半以上.
The Qiangli brand w4-60 hydraulic tire excavator produced by Guizhou Guiyang Mining Machinery Factory recently won the national silver medal of 1981 and the certificate of high quality products. This product was the factory in the early 1970s and 890 After being jointly designed and developed by a research institute, the prototype was certified by a long-term industrial test and submitted to the state for approval in 1974. It was approved for input into batch production. The current output accounts for about half of the total hydraulic excavator production in the country. the above.