Source: Tianjin Municipal Commission of housing and urban rural development, edited by Anhui Jian’an qualification,.
What is the key of composite geomembrane construction@ Composite geomembrane construction @ composite geomembrane manufacturer + V 「
17 workers were confirmed positive! From now on, the project leaders of the construction / construction / supervision parties shall not leave the city and must be on duty full-time
The first construction “highway” construction organization examination points 36 NEW! Pay close attention to learning~
