2015NB/T 35051-2015 Code for manufacture erection and acceptance of gate hoists in hydropower projects
1994DL/T 5019-1994 Specifications for manufacture,erection and formal acceptance of gate hoists in hydraulic and hydroelectric projects
DL/T 5019-1994 Specifications for manufacture,erection and formal acceptance of gate hoists in hydraulic and hydroelectric projects was changed to NB/T 35051-2015 Code for manufacture erection and acceptance of gate hoists in hydropower projects.