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由中国农机研究院设计、涿鹿液压缸厂试制的新产品KJ 系列,KJ-H12.5、KJ-G20液压快换接头,于1985年12月24～25日在涿鹿通过了鉴定。
The new product KJ series, KJ-H12.5, KJ-G20 hydraulic quick change joint designed by China Agricultural Machinery Research Institute and manufactured by Zhulu Hydraulic Cylinder Factory passed the appraisal at Zhuolu from December 24 to 25,