Constant stitch-length over joint, Intelligent bobbin monitoring, 0°super straight Inner anti-bird nest
One-key memory, thick and thin, four gears adjustable
Back seam silent, thick and thin, needle feeding
Heavy-thin-elastic shells are refueled at will, back seam silent, pedal 4 levels adjustable
Large operation space, micro oil design, double stepping
Direct drive, energy saving, stable
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