2005DB13/T 157-2005 "Surrounding the mountains" and supporting engineering construction technical specifications
1993DB13/T 157.3-1993 "Surrounding the Mountain" Project Construction Technical Specifications
DB13/T 157.3-1993 "Surrounding the Mountain" Project Construction Technical Specifications was changed to DB13/T 157-2005 "Surrounding the mountains" and supporting engineering construction technical specifications.