GAS SHIELDING METHOD FOR PIPE MANUFACTURE WELDING,申请号JP19880308526-传众专利搜索

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发明名称	GAS SHIELDING METHOD FOR PIPE MANUFACTURE WELDING
摘要
申请公布号	JPH02155577(A)	申请公布日期	1990.06.14
申请号	JP19880308526	申请日期	1988.12.06
申请人	SUMITOMO METAL IND LTD	发明人	YOSHIKAWA HIROYUKI;TAMURA ISAO
分类号	B23K13/06	主分类号	B23K13/06
代理机构		代理人
主权项
地址

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