Russian standards PDF
Brown coals, hard coals, anthracite, combustible shales and briquettes. Quality acceptance rules
Document status: Active
Countersunk head wood screws. Construction and dimensions
Document status: Active
Automatic rotational frequency control systems (ARFCS) of marine, locomotive and industrial diesel engines. Approval and test methods
Document status: Withdrawn
Photomultipliers. Measuring methods of the electric and light technics parameters.
Document status: Active