Jiangsu Sunan Water Group has 12 small township water plants and sewage stations under its jurisdiction. The plant area is scattered and the operation and maintenance personnel of a single plant are only 2-3 people. In the past, each water plant independently purchased fan and water pump accessories, which had problems such as small purchase volume and weak bargaining power, messy accessory models, and no spare accessories for emergency failures. Logistics distribution in remote villages and towns is slow, and maintenance of small water plants is often delayed.