Recently, the heavy-duty, two-stage vacuum extruding unit JZK120 of Zibo Gongli Machinery Manufacturing Co., Ltd. in Kunlun Town, Zibo District, Zibo, Shandong Province, was announced as the first domestic (set). This is a microcosm of Kunlun Town's acceleration of the transformation and upgradi

Domestic introduction of endoscopic products from abroad in the 1970s and 1980s was mainly used for the control of excess internals in aerospace products and the quality inspection of some components. Nowadays, there are many types of instruments. Industrial endoscopes are one of them. In recent ye