B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/13
B21C 3/16 (2006.01) B21C 1/24 (2006.01)
Patent
CA 1091188
TUBE DRAWING TECHNIQUE ABSTRACT OF THE DISCLOSURE A method of tube drawing a cold finished stepped internal diameter tube utilizing a novel mandrel plug having compound working surfaces designed to automatically adjust to the varying internal diameters formed in a tube hollow to be worked as it is drawn through a die. - 1 -
308255
Babcock & Wilcox Company The
Ridout & Maybee Llp
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