GOST 8820-1969 Grinding stone exit grooves. Shape and sizes
GOST 9.073-1977 Unified system of protection against corrosion and aging. Metallic and non-metallic inorganic coatings. Types, thickness rows and designations
GOST 9389-1975 Carbon steel spring wire. Specifications*, 1975-04-19 Update
GOST 15936-1970 history
1970GOST 15936-1970 Quick-changing stiff adapters for taps. Design and dimensions