a

almetahhhh

    How about this cutterhead?
    0:55
    What is the processing method?
    0:59
    ! One part needs so many processes!
    0:59
    I thought it was a doorknob!
    0:50
    It's very smooth
    0:12
    Why is its slag so fine?
    0:15
    Rush up at the end of the year
    0:59