Applied the semi - rotary large shuttle hook & bobbin , could reduce the frequency of changing the bobbin thread and increase the sewing efficiency 采用半回转式的大月眉大梭仔,可以减少更换底线之次数,增加缝制效果。
Applied the semi - rotary large shuttle hook & bobbin , could reduce the frequency of changing the bobbin thread and increase the sewing efficiency 采用半回转式的大月眉与大梭仔,可以减少更换底线之次数,增加缝制效率。