M.J. Patel [india] limited offers erw boiler tubes. M.J. Patel [india] limited manufactures seamless carbon/alloy steel pipes and tubes, erw boiler tubes, air pre-heater tubes including corten steel tubes, steam pipes and fittings, boiler components like superheater coils, economiser coils, steam generating bent to shape tubes, panels heaters, pipework for steam, feed waterline. The company offers erw boiler tubes for pipes or tubes size 4 inch, where a strip is fed into set of forming rolls. These forming rolls consist of horizontal and vertical rollers.