A tool device used to provide internal support to the pipe to prevent excessive flattening, collapse or wrinkling during rotary draw bending. It is supported by a mandrel rod that runs through the pipe ID and is held in location at the bend die.
Still Building America—The proof is in the weld - by Josh Welton The measure of your success as a welder lies in the quality of your weld. For female welder Sam Riggin, the quality of her welds also has earned her respect in a male-dominated profession.
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