Shimano DURA-ACE FC-7500 crank arm set NJS approved

years: 1982-1984 bcd151, L=165mm, pedal threads: 9/16" x 20 (English), BB style: Square Taper (JIS) condition:USED, It's vintage and rare stuff. discontinued product  the list of SAL Economy shipping cost from Japan (no insurance, no tracking number) (There isn't SAL Economy shipping to Taiwan and Vietnam) to AISA: US$7.4 (to Taiwan, Vietnam: US$11.3)to US/AUS/CAN/UK/EURO: US$8.8to SOUTH AMERICA: US$10.2 the list of EMS shipping cost from Japan (include the insurance and tracking number) to AISA: US$15   to US/AUS/CAN: US$20   to UK/EURO: US$24   to SOUTH AMERICA: US$30