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桂林市第一建筑公司制成的 TQ-15型塔式起重机,是同类起重机中比较轻的一种,用钢量少,自重指标仅为0.52。该机于1975年12月试制成功后,经初步测试及施工现场使用证明,基本上达到设计要求。TQ-15型塔式起重机主要用于五层民用
The TQ-15 tower crane made by Guilin No.1 Construction Company is one of the lightest of its kind, with a small amount of steel and a self-weight index of only 0.52. After the trial was successfully completed in December 1975, the aircraft was basically tested to meet the design requirements after preliminary tests and proof of use at the construction site. TQ-15 tower crane is mainly used for five-story civil use