... can open and close automaticallyHas 12 pieces flank tension in each right and left side.Automatic ... stop: when yarn breaking, knot, yarn up, reverse rolling, shock act, can alarm ... the request freely.Special function: Before knitting, can fix feeder automaticallyVoltage:220V+10% Function:Knitting, ... with us for further informtion! new design 2012 Automatic sweater weaving machine