first World Internet Industry Conference, guided by the Ministry of Industry and Information Technology, the Chinese Academy of Engineering, and hosted by the Linqing Municipal Government and the Economic Daily, was held in Linqing from July 15 to 16 this year, aiming to build a platform for exchanges and cooperation to promote the implementation of major strategies such as industrial Internet, Industry 4.0, and Made in China 2025, and promote the collaborative innovation and integrated development of the global Internet and various fields of industry.

1. Press the operating button of the grinding wheel motor to start the switch of the electric permanent magnet chuck. Note: the workpiece cannot be drawn, the contact of the relay is interlocked, and the grinding wheel motor cannot be started. 2, open the special distribution box of the machine tool, use the measuring pen to detect whether there is electricity at both ends of the fuse, and then use the multimeter 500V to measure the power supply voltage to 380V.