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Document Type and Number:
Japanese Patent JPH0120004
Kind Code:
Y2
More Like This:
JP4517811Manufacturing method of seamless steel pipe
JPS57199507METHOD OF PREVENTING INTERNAL DEFECT IN MANUFACTURE OF PIPE
JPS5714401METHOD AND APPARATUS FOR MANUFACTURING POLYGONAL BILLET OR POLYGONAL INGOT PROPER TO PROCESSING IN TILT ROLL TYPE BORING ROLLING MILL
Application Number:
JP9512682U
Publication Date:
June 12, 1989
Filing Date:
June 24, 1982
Export Citation:
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International Classes:
B21B19/04; B21B19/02; B21B19/06; B21B35/00; B21B35/12; (IPC1-7): B21B19/06; B21B35/00



 
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