[国外标准] SAE J747-1990 CONTROL VALVE TEST PROCEDURE
[国外标准] SAE J1692-1993 VALVE SEAT INSERT INFORMATION REPORT
[国外标准] SAE J1682-1993 VALVE GUIDE INFORMATION REPORT
[国外标准] JIS G7603-2000 Valve steels for internal combustion engines
[国外标准] ASTM F2653-07 Paintball valve male threaded connection for use with approved cylinders