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Inventor
SUGIE YOSHNORI
JP
2 patents
Patents
2 patents
US6216511B1
Apr 17, 2001
Apparatus and method for smoothing a welded seam of steel pipe
KAWASAKI STEEL CO
16 citations
91
US6375059B2
Apr 23, 2002
Method for smoothing steel pipe seam portion
KAWASAKI STEEL CO
6 citations
72