Duplex valve overview body and seats very informative for internship Engineer Mechanical

Duplex valve overview body and seats very informative for internship Engineer Mechanical <br />Mechanical Engineering Works all types of Pumps, valves, Gears Machines Operations, Leith ,Shaper, Drilling , Planer, Etc Welding Gas, Electrical, Organ. Fitting all types, Overhauling, Troubleshooting, Operations, Maintenance and Repairing, Mill Rights,