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MANUFACTURE OF TRIPLET PIPE BY MECHANICAL BONDING

申请公布号:JPS6440116(A)

申请号:JP19870197378

申请日期:1987.08.07

申请公布日期:1989.02.10

申请人:
NIPPON STEEL CORP

发明人:ICHIHARA HIROHISA;SUMIMOTO DAIGO

分类号:B21C37/06

主分类号:B21C37/06

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