Upper differential computerized lockstitch sewing machine SM-5490-7 Product Name: Upper differential computerized lockstitch sewing machine Model: SM-5490-7 SEND INQUIRY You can make an inquiry about this product.Your e-mail will not be leaked. PRODUCT DETAIL Share: RELATED PRODUCTS Double step computer ptten lcstith sewing machine SM-2021A INTELLEGENT LOCKSTITCH SEWING MACHINE SM-8000A Single Needle Direct Drive Lockstitch Sewing Machine SM-C1 Single Needle Direct Drive Lockstitch Sewing Machine SM-M1