GOST 27419-87

Braille symbols and design of Braille editions

State system for ensuring the uniformity of measurements. Flowmeter electromagnetic industry. Methods and means for verification

Flange connections of wellhead equipment. Types, basic parameters and dimensions

Seed of flowers. Methods for determination of moisture

Magnetic circuits, tape orthogonal for multifunctional electromagnetic transformers

Occupational safety standards system. Respiratory protective devices. Half masks without inhalation valves and with separable filters to protect against gases or gases and particles or particles only. General specifications