GOST 20917-87

Cranes. Training of appointed persons. Part 1. The person responsible for safe work performance by cranes

Tourist service. Projection of tourists service

Dental materials. Guidance on testing of wear. Part 2. Wear by two- and/or three body contact

Fishplate bolts for broad gauge. General requirements

Autoclaves for building industry. Types and basic technical data

Occupational safety standards system. Special clothing for protection against gases and liquid chemicals. Method for determining the protective properties of the material under the action of chlorine and ammonia