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发明名称
PRODUCTION OF SPIRALLY-SHAPED CORRUGATED METAL TUBING
摘要
申请公布号
GB8729749(D0)
申请公布日期
1988.02.03
申请号
GB19870029749
申请日期
1987.12.21
申请人
SPIRO MACHINES SA
发明人
分类号
B21C37/12
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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