BE562307A - - Google Patents
Info
- Publication number
- BE562307A BE562307A BE562307DA BE562307A BE 562307 A BE562307 A BE 562307A BE 562307D A BE562307D A BE 562307DA BE 562307 A BE562307 A BE 562307A
- Authority
- BE
- Belgium
- Prior art keywords
- boxes
- cap
- profile
- quadrangular
- triangular
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Road Signs Or Road Markings (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE562307A true BE562307A (cs) |
Family
ID=183954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE562307D BE562307A (cs) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE562307A (cs) |
-
0
- BE BE562307D patent/BE562307A/fr unknown
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