| 发明名称 |
VERFAHREN UND VORRICHTUNG ZUM DOPPELBOERDELN VON ROHREN |
| 摘要 |
A process and arrangement for double flanging of pipes for making fluid-tight pipe joints. The pipe has a plastic interior coating and is coaxially mounted on an inner tubular pipe joint member having a collar and a conical bearing surface which is at least partially roughened. |
| 申请公布号 |
DE2132190(A1) |
申请公布日期 |
1973.01.18 |
| 申请号 |
DE19712132190 |
申请日期 |
1971.06.29 |
| 申请人 |
ZAKO ROHRVERBINDUNGEN GMBH & CO KG |
发明人 |
DIETZEL,KLAUS |
| 分类号 |
B21D39/04;F16J10/02;F16L13/16;F16L19/02;F16L19/04;F16L23/12;F16L39/00;(IPC1-7):21D19/08 |
主分类号 |
B21D39/04 |
| 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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