Can the title of intermediate water supply and drainage be signed on the drawing frame?
The title of intermediate water supply and drainage cannot be signed on the drawing frame. According to relevant information, the title of intermediate water supply and drainage can not be signed on the drawing frame without professional qualification, and it must be signed with professional qualification to have legal effect. Water supply and drainage engineers are related to water supply, drainage and water treatment of houses, buildings and cities. Water is the source of life, and cities cannot do without water and water supply and drainage engineers.