gb50021-2001
gb50021-2001, Total:2 items.
The international standard classification for "gb50021-2001" includes: Earthworks. Excavations. Foundation construction. Underground works .
The Chinese standard classification for "gb50021-2001" includes: Engineering location, hydrogeological survey and geotechnical engineering .
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB 50021-2001(2009) Code for investigation of geotechnical engineering
- GB 50021-2001 Code for investigation of geotechnical engineering
