方法一。将床尖蘑去一半,注意挫刀跟床成十字那样磨,把针头也磨得同床尖刚好咬合。。。再用挫刀挫。。。方法二。床尖不用磨,光蘑针头磨博点。针头最好磨平点。焊接针头要顶到床尖再焊,个人觉得方法一会好点,因为 ...
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