JPH0416584Y2 - - Google Patents
Info
- Publication number
- JPH0416584Y2 JPH0416584Y2 JP4256487U JP4256487U JPH0416584Y2 JP H0416584 Y2 JPH0416584 Y2 JP H0416584Y2 JP 4256487 U JP4256487 U JP 4256487U JP 4256487 U JP4256487 U JP 4256487U JP H0416584 Y2 JPH0416584 Y2 JP H0416584Y2
- Authority
- JP
- Japan
- Prior art keywords
- bottom plate
- duct
- fireproof
- step portion
- duct body
- 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
- 239000011810 insulating material Substances 0.000 claims description 6
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 description 7
- 230000009970 fire resistant effect Effects 0.000 description 3
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Details Of Indoor Wiring (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256487U JPH0416584Y2 (en]) | 1987-03-25 | 1987-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256487U JPH0416584Y2 (en]) | 1987-03-25 | 1987-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63153724U JPS63153724U (en]) | 1988-10-07 |
| JPH0416584Y2 true JPH0416584Y2 (en]) | 1992-04-14 |
Family
ID=30858596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4256487U Expired JPH0416584Y2 (en]) | 1987-03-25 | 1987-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416584Y2 (en]) |
-
1987
- 1987-03-25 JP JP4256487U patent/JPH0416584Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63153724U (en]) | 1988-10-07 |
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