KS C IEC 60534-3-1-2004 工业过程控制阀.第3-1部分:尺寸.法兰面对面尺寸、两路、直型和法兰中心对面尺寸、两路、球形、角型控制阀门
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