阀门标准 BS EN 1074-3-2000 Valves for water supply – Fitness for purpose requirements and appropriate verification tests – Part 3 Check valves.pdf [db:摘要]
阀门标准 BS 7461-1991 Specification for electrically operated automatic gas shut-off valves fitted with throughput adjusters, proof of closure switches.pdf [db:摘要]
阀门标准 BS 7438-1991 Steel and copper alloy wafer check valves, single disk, spring-loaded type.pdf [db:摘要]
阀门标准 BS 7350-1990 —ouble regulating globe valves and flow measurement devices for heating and chilled water systems.pdf [db:摘要]
