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发明名称
COLD ROLL-FORMED STRUCTURE AND METHOD AND APPARATUS FOR PRODUCING SAME
摘要
申请公布号
EG18252(A)
申请公布日期
1992.08.30
申请号
EG19870000147
申请日期
1987.03.12
申请人
DOWN INCORPORATED
发明人
分类号
E04C2/08;B21B;B21B1/08;B21B15/00;B21B15/02;B21D5/08;B21D5/14;B21D13/02;B21D13/04;E04C3/04;(IPC1-7):B21B15/00
主分类号
E04C2/08
代理机构
代理人
主权项
地址
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