1. It is not easy to expand after the pin is shaped into K-pin first, which has the effect of setting, and can better control the bent foot and the outflow of deformation defects;<br>2. K-foot processing will not affect your normal use;<br>3. After the k-foot is formed, the positive and negative guide pins are far away from each other, and the limit detection photoelectricity can identify more effectively, which is not easy to cause misjudgment;
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