Helical springs for trucks and draw-and-buffer gears of railway rolling stock. Specifications
Document status: Active
Printing teletypes for 5-elements code. Basic parameters and general technical requirements
Document status: Active
Arrangements for fastening heat insulation of steel vessels and apparatus. Construction and dimensions. Technical requirements
Document status: Active
Devices for heart bioelectric potentials measurement. General technical requirements and test methods
Document status: Withdrawn
