Circularly oil-offerings,little oil-consuming,etc.Sewing shirts,uniforms,jeans,overcoat,etc.Applicable to a wide rage of materia ... lines of lockstitch, serve for the purpose of sewing shirts, uniforms, jeans, overcoats, etc. applied to a wide range of sewing ... and puckering between layers of materials, suitable for stitching shirt, uniforms, underwear and jean, etc.