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Upper roller,lower wheel and needle feeding mechanism ensure smooth sewing at all times even joining other material for overlap sewing.Needle feeding ensures constant supply of thin and thick material no matter it moves straight or maked turns.Also suitable for sewing spongy material,no crinkle or transform will be occurred,instead the stitch is very smooth and neat.Low friction between the parts because ball and needle bearings are used.Easy for maintenance and long serivce life
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美中官方公众号
