تماشای ویدئو فرآیند ساخت زانویی صنعتی Pipe Fittings از آی-ویدئو

In this video, you will learn about Elbow manufacturing process. Subscribe: https://goo.gl/9OktFA There are four well known Pipe Elbow Manufacturing Process. Mandrel method, Extrusion Method, UO Method and Hot Forming Method.
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