FIELD: rigid pipes.
SUBSTANCE: pipe comprises reinforced composition layer and protecting inner and outer polymeric layers. The composition layer is provided with through passages. The protecting polymeric layers are interconnected through passages.
EFFECT: enhanced reliability.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF MANUFACTURE OF PIPE | 2004 |
|
RU2262026C1 |
| PIPE | 2003 |
|
RU2255264C2 |
| PIPE | 2003 |
|
RU2255263C2 |
| METHOD OF MANUFACTURE OF COMBINED PIPE | 2002 |
|
RU2216672C1 |
| PIPE | 2003 |
|
RU2255265C2 |
| TUBE | 2003 |
|
RU2239744C1 |
| PIPE | 2003 |
|
RU2240463C1 |
| PIPE LINE | 2002 |
|
RU2249149C2 |
| PIPELINE | 2003 |
|
RU2241891C1 |
| PIPE LINE | 2001 |
|
RU2211397C2 |
