| 发明名称 |
A METHOD OF BENDING METAL ROOFING SHEETS AND A BENDING APPARATUS |
| 摘要 |
Roofing metal sheets of the kind having upstanding flat edges ending with beads are bent by having their flat edges rolled so that they will be gradually thinner towards the beads. The sheets will be bent also if the bea ds are not rolled.
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| 申请公布号 |
CA2461664(A1) |
申请公布日期 |
2003.05.22 |
| 申请号 |
CA20022461664 |
申请日期 |
2002.09.18 |
| 申请人 |
ORTIC AB |
发明人 |
INGVARSSON, LARS |
| 分类号 |
B21D5/08;B21D5/14;B21D11/08;B21D11/10;B21D53/00;(IPC1-7):B21D5/14 |
主分类号 |
B21D5/08 |
| 代理机构 |
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代理人 |
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