[国外标准] DIN 443-2008 Sealing push-in caps
[国外标准] SAE J917-1980 MARINE PUSH-PULL CONTROL CABLES
[国外标准] SAE J892M-1996 PUSH-ON SPRING NUTS METRIC SERIES.GENERAL SPECIFICATIONS
[国外标准] SAE J2494-2000 Push-to-Connect Tube Fittings for Use in the Piping of Vehicular Air Brake