October 27-29, 2020, sponsored by the China surface engineering association thermal spraying branch, yixing raw green chemical co., LTD., to undertake the 23rd international hot spraying workshop (ITSS '2020) and the 24th national thermal spraying meeting (CNTSC' 2020) was held in yixing pottery peninsula hotel success, on behalf of my company to be invited to participate in the meeting. The theme of the conference is "Working together, exploring the market, cooperating with each other and overcoming difficulties together". A large number of people attended this seminar and annual meeting, coming from nearly 200 enterprises and institutions, scientific research institutions, experts, thermal spraying colleagues gathered together to participate in the grand event.