JPH0430124U - - Google Patents
Info
- Publication number
- JPH0430124U JPH0430124U JP7248190U JP7248190U JPH0430124U JP H0430124 U JPH0430124 U JP H0430124U JP 7248190 U JP7248190 U JP 7248190U JP 7248190 U JP7248190 U JP 7248190U JP H0430124 U JPH0430124 U JP H0430124U
- Authority
- JP
- Japan
- Prior art keywords
- outer layer
- nonwoven fabric
- large number
- layer
- underdrain
- 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
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000000379 polymerizing effect Effects 0.000 claims 1
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
- Laminated Bodies (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7248190U JPH0430124U (en, 2012) | 1990-07-06 | 1990-07-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7248190U JPH0430124U (en, 2012) | 1990-07-06 | 1990-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0430124U true JPH0430124U (en, 2012) | 1992-03-11 |
Family
ID=31610454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7248190U Pending JPH0430124U (en, 2012) | 1990-07-06 | 1990-07-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0430124U (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038460A (ja) * | 2000-07-26 | 2002-02-06 | Totaku Kogyo Kk | バーチカルドレンパイプ |
-
1990
- 1990-07-06 JP JP7248190U patent/JPH0430124U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002038460A (ja) * | 2000-07-26 | 2002-02-06 | Totaku Kogyo Kk | バーチカルドレンパイプ |