JPH0291283U - - Google Patents
Info
- Publication number
- JPH0291283U JPH0291283U JP17002088U JP17002088U JPH0291283U JP H0291283 U JPH0291283 U JP H0291283U JP 17002088 U JP17002088 U JP 17002088U JP 17002088 U JP17002088 U JP 17002088U JP H0291283 U JPH0291283 U JP H0291283U
- Authority
- JP
- Japan
- Prior art keywords
- polyethylene layer
- utility
- peripheral surface
- inner peripheral
- scope
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004698 Polyethylene Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17002088U JPH0291283U (zh) | 1988-12-29 | 1988-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17002088U JPH0291283U (zh) | 1988-12-29 | 1988-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0291283U true JPH0291283U (zh) | 1990-07-19 |
Family
ID=31460589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17002088U Pending JPH0291283U (zh) | 1988-12-29 | 1988-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0291283U (zh) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756850U (zh) * | 1980-09-17 | 1982-04-03 |
-
1988
- 1988-12-29 JP JP17002088U patent/JPH0291283U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756850U (zh) * | 1980-09-17 | 1982-04-03 |