Drafting of Industry Standards---
In 2017, Jiangsu Longda was one of the industry standard drafters, and the technical director of Jiangsu Longda approved the industry standard of heat transfer printing machines as the standard drafter.
The first to produce the fixed height curtain transfer printing with width of 2.8
More than 20 invention patents
Nearly 100 utility model patents
Nearly 1,000 appearance patents