Does anyone know the procurement mode of Wuhan Tianyuan Environmental Protection?

It mainly consists of two parts: raw material procurement and subcontracting service procurement. Raw material procurement mainly includes general materials (such as membrane and steel), equipment (such as water pumps and valves) and electrical control (such as electrical automatic control equipment and instruments). Subcontracting service procurement mainly refers to Tianyuan Environmental Protection, which generally subcontracts non-critical links in the process of project implementation.