First, the welding workers over 40 years old probably know or personally participated in the 1984 Hangzhou International Welding Conference. This is the first international conference held in China's welding industry. In fact, the most powerful thing at the time was for the international academic conference. Hangzhou International Welding Exhibition. The record of more than 20,000 people (not the number of visitors) created at this exhibition has not been broken yet. At one time, Hangzhou Mancheng was a welding worker, and some people hit the ground floor because the hotel was full. In 1986, there were two majors in the world exhibition industry.
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