Friction welding drill pipe for oil exploration, in short video and GIF.
https://s3-us-west-1.amazonaws.com/h...on_welding.gif
Friction welding drill pipe for oil exploration, in short video and GIF.
https://s3-us-west-1.amazonaws.com/h...on_welding.gif
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dubbby (May 20, 2020), mwmkravchenko (May 16, 2021)
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