... needle detector,low noise. BRIEF INTRODUCTION:SX-460E(Program-control model)is programmable semi- automatic sewing machine is used ... low noise,convenient operation,frequency speed control,safety design and etc.PLC program-control system is adopted in this ... cover books. Technical paremeterModel:SX-460E sewing machine(program control)Max.sewing size460*310Min.sewing size150*100Sewing speed100Number of ...