GOST 20386-74

Gallium. Chemical-atomic-emission method for the determination of aluminium, bismuth, cobalt, silicon, magnesium, manganese, copper, nickel, lead, silver, chromium, zinc and iron

Casing and coring tubes for geology-exploring drilling. Specifications

United power system and isolated power systems. Operational dispatch management. Relay protection and automation. Technical accounting and operations analysis. General requirements

Particleboards. Definitions and classification

Active absorpting powder charcoal. Specifications

Rolls. Basic dimensions