改进的供、回油系统，送料牙的前后倾斜度可自由调节，最大限度减少了起皱及上下缝料误差。简单可靠的新型抬压脚结构，大大降低故障率，操作方便灵活。倒顺送料针距可调，结构新超，保证了倒、顺缝纫线迹的一致性和运转的平稳性。The oil supplied adn returned system is improived already;we can adjust the front back slant angle of feed dog freely,to reduce the crinkle possibility and the stitch error between up/down feeding material;New style lifting presser foot is very easy and reliable,can debase the malfunction rate greatly,and the operation is very convenient and agile;We can adjust the needle distance for forward and reverse stitch,based on new design,to guarantee to sew forward and reverse stitch smoothly and placidly.
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