• 2022-10-24
    KA1的研磨顺序为:() 1捣锤粉碎研磨 2锯齿精细研磨 3底部齿轮再精细研磨 4边角齿轮深度研磨
    A: 1.2.3.4
    B: 1.2.4.3
    C: 1.3.2.4
    D: 1.4.2.3