[国外标准] SAE J1945-2000 Cross-Tooth Companion Flanges, Type T
[国外标准] SAE J1619-1997 SINGLE TOOTH GEAR BENDING FATIGUE TEST
[国外标准] JIS B7531-1982 Gear Tooth Vernier Callipers
[国外标准] JIS S3016-1995 Tooth brushes
[国外标准] JIS B1741-1977 英文版 Tooth Contact Marking of Gear