发明名称 |
Metal sections mfr. for cylindrical tubes - by curving, corrugation and crimping in a single operation, for continuous prodn. |
摘要 |
<p>The fabricator comprises prodn. of curved and corrugated elements in a single operation. The tubes, e.g., for grain silos are thus produced in a continuous work cycle. The sections are crimped prior to final forming so as to exclude the need for bolting during final assembly.</p> |
申请公布号 |
PT88549(A) |
申请公布日期 |
1989.07.31 |
申请号 |
PT19880088549 |
申请日期 |
1988.09.20 |
申请人 |
BRUNO FUCHS |
发明人 |
|
分类号 |
B21D;B21D13/00;(IPC1-7):B21D/ |
主分类号 |
B21D |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|