发明名称 PIPE MILL
摘要 A pipe or tube mill of the cage-type having improvements in the breakdown, preforming and edge forming of the strip reducing the cost of tooling and enhancing the convertibility of the mill to produce tubes or pipe of different sizes and yet which can readily handle heavy gauge strip.
申请公布号 US3635064(A) 申请公布日期 1972.01.18
申请号 USD3635064 申请日期 1969.11.10
申请人 YODER CORP.:THE 发明人 WILLIAM J.H. CHANG
分类号 B21C37/08;B21D5/12;(IPC1-7):B21D5/08 主分类号 B21C37/08
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