... machine is the kind of single-needle, connecting level, locksitch and mattress sewing machine. This Single Needle Long Arm Lockstitch ... Sewing Machine is the kind of single-needle, connecting level, locksitch and mattress sewing machine. ... sewing machine is suitable for sewing mattress panel, bedspread, sofa panel and tent. Main Technical Parameters:Power SupplySingle-Phase,220V ...