JPH028077Y2 - - Google Patents
Info
- Publication number
- JPH028077Y2 JPH028077Y2 JP7715782U JP7715782U JPH028077Y2 JP H028077 Y2 JPH028077 Y2 JP H028077Y2 JP 7715782 U JP7715782 U JP 7715782U JP 7715782 U JP7715782 U JP 7715782U JP H028077 Y2 JPH028077 Y2 JP H028077Y2
- Authority
- JP
- Japan
- Prior art keywords
- manhole
- guide steel
- steel pipe
- steel tube
- slip
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 230000002265 prevention Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000004568 cement Substances 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Ladders (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7715782U JPS58179399U (ja) | 1982-05-26 | 1982-05-26 | マンホ−ルのステツプ取付構造 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7715782U JPS58179399U (ja) | 1982-05-26 | 1982-05-26 | マンホ−ルのステツプ取付構造 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58179399U JPS58179399U (ja) | 1983-11-30 |
| JPH028077Y2 true JPH028077Y2 (es) | 1990-02-26 |
Family
ID=30086431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7715782U Granted JPS58179399U (ja) | 1982-05-26 | 1982-05-26 | マンホ−ルのステツプ取付構造 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58179399U (es) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH086828Y2 (ja) * | 1989-07-14 | 1996-02-28 | 三山工業株式会社 | マンホール用足掛具 |
-
1982
- 1982-05-26 JP JP7715782U patent/JPS58179399U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58179399U (ja) | 1983-11-30 |
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