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ST-313主要用于雙面呢合縫，獨特的暗縫方式 ，采用獨特的卷邊設計。

ST-313 is use for double side stitch, it have special blind stitch sewing method and the special double stitching hemming design

ST-360主要用于各種厚料的晴縫加工，采用垂直的道布方式，從而保證了翹撬縫的精度和均勻性。

ST-360 use for different kind of thick material' s blind stitch sewing.The accuracy and evenness of the blind sewing can be under control with the special vertical feeding method .to the pocket. A stacking sensor is also provided as standard to prevent stacking errors.