Uniform provisions concerning the approval of motor vehicle headlamps emitting an asymmetrical passing beam (or) a driving beam or both and equipped with halogen filament lamps (H1, H2, H3, HB3, HB4, H7, H8, H9, HIR1, HIR2 and (or) H11)
Unified system for design documentation. Graphic designations. Components and arrangements of machines and apparatus of chemical industry. General symbols