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编辑同志:请问塔式起重机操作时有哪些安全事项?金华常山常山先生:来函收悉。作业人员在使用塔式起重机的安全事项有:1.操作时应精力集中,互相配合,并
Editor comrades: What are the safety issues when operating tower cranes? Changshan Changshan Jinhua: receipt of the letter. Safety personnel in the use of tower crane operators are: 1. Operation should focus on and cooperate with each other, and