Russian standards PDF
GOST 21425-75
Straight-sided splines. Load capacity calculation methods
Document status: Active
€10
GOST 21755-76
Printing teletypes for 5-elements code. Fonts. Symbols size and his contour
Document status: Active
€10
GOST 21756-76
Printing teletypes for 5-element code. Reliability test methods
Document status: Active
€10