Recycling. Suzhou Wan Wen market recycles various Wan Wen gadgets, and Nanhong bracelets belong to Wan Wen gadgets, so Suzhou Wan Wen market recycles Nanhong. Literary drama refers to Four Treasures of the Study and various literary techniques derived from him. These stationery have different shapes and exquisite carvings, which can be used and rewarded, and become handicrafts in the study and on the case.