The quality of various raw materials of paper wrapping manufacturers, as well as the strong vibration in some occasions and the centrifugal force at high speed, the corona resistance and breakdown under high voltage, the chemical corrosion resistance under special atmosphere, etc. These include the requirements for stretching, bending and wear during winding and weaving, as well as swelling, process parameters, production equipment, environmental factors, etc. during the impregnation and drying process, which can be measured by laser laser scanning. The laser does not touch the line, and the accurate data can be obtained by sensing. Convenient and fast, paper-wrapped line manufacturers truly real-time monitoring of production, full-process monitoring, and different quality characteristics, but all have mechanical properties, chemical properties, electrical properties, thermal performance, four properties, erosion and so on.