阀门标准 AS 1357.2-2009 Valves Primarily for use in Heated Water Systems – Part 2 Control Valves.pdf [db:摘要]
阀门标准 JIS B2005-3-2-2005 Industrial-process control valves-Part 3-2：Dimensions-Face-to-face dimensions for rotary control valves except butterfly valves.pdf [db:摘要]
