Partnership. Zhou Dasheng brand, the store not only sells gold jewelry of Gang brand, but also sells pure gold of Huachang jewelry brand. Huachang Jewelry and Zhou Dasheng belong to a cooperative relationship. Huachang Jewelry Co., Ltd., founded in 1998, is headquartered in Putian, Binhai New Town, Haixi Economic Zone, covering an area of about 70,000 square meters. The company has seven centers.