categories & grades of qualification:
first-class for construction engineering in construction industry
second-class for civil air defense engineering in construction industry
second-class for water drainage engineering in municipal industry
second-class for water supply engineering in municipal industry
second-class for road engineering in municipal industry
second-class for landscaping engineering design
third-class for power transmission engineering in electric power industry
third-class for power distribution engineering in electric power industry
issued by department of housing and urban & rural development of anhui province