适用缝制双孔、四孔、或立式钮扣至衬衫、西服衣裤、外套、工作服等；
“培 林”传动系统，使运转更加平顺、
无噪音；
底部油绵和顶部油池，双给油系统。
Suitable to attach flat two holes, four holes, or shank buttons onto all kinds of shirts, suits, overcoats, work uniforms etc......；Driving system inserted“bearings” provides smoother, quieter running. Double（top & bothon) oil feeding design
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