Small Dimension Welded Elbow Manufacturing Method:Pressing Stereotype
These elbows are made from the steel plates,so it is not seamless steel elbows,use a mould and press the steel plate to the shape of the elbow,then weld the seam to be a finish steel elbows it is the old production method of the elbows.Recent years the small sizes elbows are almost manufactured from the steel pipes now.
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