... oil-consuming,etc.Sewing shirts,uniforms,jeans,overcoat,etc.Applicable to a wide rage of materia The machine adopts circularly oil ... up, self-lubricating can produce two lines of lockstitch, serve for the purpose of sewing shirts, uniforms, jeans, overcoats, etc. applied ... to a wide range of sewing materials, synchronized feed by needle and feed dog can prevent ...