Industrial-process control valves -- Part 3-1: Dimensions -- Face-to-face dimensions for flanged, two-way, globe-type, straight pattern and centre-to-face dimensions for flanged, two-way, globe-type, angle pattern control valves
工业过程控制阀第3-1部分:尺寸法兰式、双向、球形、直型控制阀的面对面尺寸和法兰式、双向、球形、角型控制阀的中心对面尺寸