发明名称 Apparatus for making corrugated sheet material
摘要 Apparatus for making corrugated sheet material, primarily intended for use in heat exchangers as secondary heat exchange surfaces, includes a pair of rolls rotatable in opposite directions to draw sheet between the rolls.
申请公布号 US4170122(A) 申请公布日期 1979.10.09
申请号 US19780877628 申请日期 1978.02.14
申请人 COVRAD LTD 发明人 COWELL, TIMOTHY A T
分类号 B21D13/04;F28F3/02;(IPC1-7):B21D13/04 主分类号 B21D13/04
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