Proline- the most trusted brand in the field of valves, level indicators, view glasses...since 1996.We, Proline Engineers, were established in the year 1996 and through our excellent engineering expertise, soon achieved the zenith of success and brilliance. Passing through a golden phase spanned over a decade, we have established ourselves as a highly reputed manufacturer, exporter and supplier of a range of products under the brand name of "Proline".