GB/T 36152-2018齿轮齿条式人货两用施工升降机安全评估规程国家标准
英文:Safety assessment code of practice of rack and pinion hoists for persons and materials GB/T 36152-2018介绍: 国家标准《齿轮齿条式人...
英文:Safety assessment code of practice of rack and pinion hoists for persons and materials GB/T 36152-2018介绍: 国家标准《齿轮齿条式人...