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Producing Learning Media Project in Metal Transformation machine System in Work Place Application of Hydraulic System and Relay Controlling System of Ball Valve Lathe Machine 3D
(Rajamangala University of Technology Phra Nakhon, 2017)
A research project to produce a learning media which included a metalworking system
through a real machine in the workplaces. Under the topic of Hydraulic system, and a control relay
system of ball valve lathe. The results ...