Punching press of drill pipe mouth and the design of dies

Punching press of drill pipe mouth and the design of diesJ. MW Metal Forming, 2006, (9): 82-83.

Citation:

Punching press of drill pipe mouth and the design of diesJ. MW Metal Forming, 2006, (9): 82-83.

Citation:

Punching press of drill pipe mouth and the design of diesJ. MW Metal Forming, 2006, (9): 82-83.

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