Ключевые слова:
Copper alloys|Dimensional tolerances|Metals|Gate valves|Design|Threads|Marking|Pressure testing|Screw-down valves|Dimensions|Pressure|Size|Flanges|Designations|Temperature|Valves|Stop valves|Diameter|Check valves|Valve bodies|Fluid equipment|Elongation|Leak tests|Valve components|Chemical composition|Tensile strength|Proof stress