省冶金第一建设公司为了改变垂直水平运输的落后面貌,提高施工机械化水平,于去年初学习北京兄弟单位先进经验后,通过广大职工的共同努力,在几个月的时间里,自力更生地制成了“向阳4号”八吨轮胎一轨道两用起重机。通过使用和50多公里的拖运试验,基本上达到设计要求,个别指标还有所超过。 In order to change the backwardness of vertical transport and improve the mechanization level of construction, Provincial Metallurgical Construction Company No.1, after learning the advanced experience of Beijing Brothers unit early last year and through the joint efforts of vast numbers of staff and workers, made its own efforts in a few months The “Sunny No. 4” eight tons of tires a track dual-use cranes. Through the use and more than 50 kilometers of haulage tests, basically meet the design requirements, individual indicators have exceeded.