JIS B 2005-3-1:2005 工业过程控制阀.第3-1部分:尺寸.有法兰双通球形直型控制阀的端面间距尺寸和有法兰双通球形角型控制阀的中心与端面间距的尺寸
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