Ключевые слова:
Nipples (pipes)|Pipe tees|Marking|Bend couplings|Pipe connections|Interchangeability|Pressure pipes|Elbows (pipes)|Hydraulic equipment|Designations|Pressure|Service pressure|Toroidal sealing rings|Hydraulic transmission systems|Dimensional tolerances|Screwed fittings|Dimensions|Hose connectors|Straight couplings|Pipe fittings