JPH0521366Y2 - - Google Patents
Info
- Publication number
- JPH0521366Y2 JPH0521366Y2 JP750088U JP750088U JPH0521366Y2 JP H0521366 Y2 JPH0521366 Y2 JP H0521366Y2 JP 750088 U JP750088 U JP 750088U JP 750088 U JP750088 U JP 750088U JP H0521366 Y2 JPH0521366 Y2 JP H0521366Y2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- ring
- score line
- paper
- mold
- 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 - Lifetime
Links
- 239000002131 composite material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 description 21
- 239000000123 paper Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 11
- 239000011087 paperboard Substances 0.000 description 9
- 239000000057 synthetic resin Substances 0.000 description 9
- 229920003002 synthetic resin Polymers 0.000 description 9
- 238000009415 formwork Methods 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 239000011888 foil Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 238000004804 winding Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000011111 cardboard Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012188 paraffin wax Substances 0.000 description 4
- 239000002655 kraft paper Substances 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000001993 wax Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
- Moulds, Cores, Or Mandrels (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP750088U JPH0521366Y2 (fi) | 1988-01-22 | 1988-01-22 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP750088U JPH0521366Y2 (fi) | 1988-01-22 | 1988-01-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01112910U JPH01112910U (fi) | 1989-07-28 |
JPH0521366Y2 true JPH0521366Y2 (fi) | 1993-06-01 |
Family
ID=31212560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP750088U Expired - Lifetime JPH0521366Y2 (fi) | 1988-01-22 | 1988-01-22 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0521366Y2 (fi) |
-
1988
- 1988-01-22 JP JP750088U patent/JPH0521366Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH01112910U (fi) | 1989-07-28 |
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