GOST PDF
GOST 21656-76
Unified automated country communication system. Channels of acoustic telegraphy with frequency modulation. Types and basic electric parameters
Document status: Active
€10
GOST 21721-76
Horizontal hobbing machines for cylindrical fine-pitch gears. Basic dimensions
Document status: Active
€10
GOST 21803.3-76
Vacuum-enclosed prove tubes. Method of measurement of current of grid having positive potential with respect to cathode
Document status: Active
€10