AFTER-SALES SERVICE Operation and Maintenance Video (English):https://www.youtube.com/@LE_vendingmachine Operation and Maintenance Video (Chinese):https://www.youku.com/profile/index/?spm=a2hbt.13141534.1_1.1&uid=UMTM5MzM3NDk3ODQ=
https://www.youtube.com/@LE_vendingmachine