| 发明名称 |
FORFARANDE OCH ANORDNING FOR KALLDRAGNING AV ROR |
| 摘要 |
A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land. |
| 申请公布号 |
SE442712(B) |
申请公布日期 |
1986.01.27 |
| 申请号 |
SE19780009095 |
申请日期 |
1978.08.29 |
| 申请人 |
THE BABCOCK & WILCOX COMPANY |
发明人 |
P E * STUMP |
| 分类号 |
B21C1/22;B21C1/24;B21C3/02;B21C3/16;(IPC1-7):B21C1/24 |
主分类号 |
B21C1/22 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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