The process for the progressive die mold of refrigerator grounding pins is as follows: open three holes, punch rough positioning trimming, emboss - - - punch two holes, flip the hole - - - punch square hole - - - cut material - - - empty position - - - bend + cut material - - - empty position - - - bend - - - punch off. The slope at the back pushes the finished product to the material rack at the front. The mold has eleven stations, which can be considered mid-level.
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