What is "suihua"

Suihua is a prefecture-level city in west-central Heilongjiang province, People's Republic of China, adjacent to Yichun to the east, Harbin, the provincial capital, to the south, Daqing to the west and Heihe to the north. It has 5,418,453 inhabitants at the 2010 census, of whom 877,114 lived in the built-up (or metro) area made of Beilin District.