我国金属制品行业设备的研制设计和生产工艺水平与世界发达国家相比,长期存在着较大的差距。拿拉丝制绳行业来说,许多厂家至今仍在使用着五、六十年代的陈旧设备,机器的精密度和自动化水平差,操控难 Compared with the developed countries in the world, there is a long gap between the research, design, and production technology of China’s metal products industry. For the pull string making industry, many manufacturers still use old equipment from the 1950s and 1960s. The precision and level of automation of the machines are poor, and their handling is difficult.