gate资源列表

[国外标准] BS 5157-1989 Steel gate (parallel slide) valves

[国外标准] JIS B2011-2009 Bronze, gate, globe, angle, and check valves(Amendment 2)

[国外标准] JIS B2011-2004 Bronze, gate, globe, angle, and check valves(Amendment 1)

[国外标准] JIS B2011-2003 Bronze, gate, globe, angle, and check valves