Secondary classification. Jinhua City adopted the second four-point garbage disposal method. The second quartile garbage is classified according to perishable and non-perishable, and the non-perishable garbage is classified again according to the standards of "easy to sell" and "hard to sell". So secondary refers to secondary classification. Jinhua, formerly known as Wuzhou, is a prefecture-level city in Zhejiang Province and one of the 27 cities in the central area of the Yangtze River Delta. It was founded in the twenty-fifth year of the King of Qin (the first 222 years), and was named Jinhua because of "the land where Venus and martial women compete for China".