According to the enterprise data, Cangzhou Water Supply and Drainage Group Co., Ltd. was established in April 2006-19, and its business scope includes the production and management of raw water. Natural water management; Production and management of tap water; Sewage and sludge treatment, reclaimed water production and management; Water quality testing business; Installation and operation of water meter; Pipeline construction and management; Housing and land lease; Wholesale and retail of steel, wood, building materials, decorative materials, chemical products (excluding dangerous chemicals and varieties that need to be approved by relevant departments) and Wujinjiaodian (projects that need to be approved according to law can only be operated after being approved by relevant departments). **