METHOD AND DEVICE FOR IMPROVING DIMENSIONAL ACCURACY IN LARGE DIAMETER PIPE,申请号JP19900332806-传众专利搜索

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发明名称	METHOD AND DEVICE FOR IMPROVING DIMENSIONAL ACCURACY IN LARGE DIAMETER PIPE
摘要
申请公布号	JPH04200825(A)	申请公布日期	1992.07.21
申请号	JP19900332806	申请日期	1990.11.29
申请人	SUMITOMO METAL IND LTD	发明人	FUKUKAWA YOSHIAKI;ANDO KENICHI
分类号	B21D39/20	主分类号	B21D39/20
代理机构		代理人
主权项
地址

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