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我厂试制成功的行星式搓丝机(图1),是一台高效率的专用设备。它可以用来加工GB71～GB75M6紧固螺钉,其加工长度为8～35毫米。它的主要部件为两块弧形丝板和一只滚丝
I plant trial success of the planetary thread rolling machine (Figure 1), is a highly efficient special equipment. It can be used to process GB71 ~ GB75M6 fastening screws, the processing length of 8 to 35 mm. Its main components are two curved wire and a rolling wire