[国外标准] JIS B8814-1992 Pulleys for belt conveyors
[国外标准] JIS B1855-1991 Grooved pulleys for narrow V-belts
[国外标准] JIS B1854-1987 Grooved Pulleys for Classical V-belts
[国外标准] JIS B1852-1980 Pulleys for Flat Transmission Belts