JPH01109403U - - Google Patents
Info
- Publication number
- JPH01109403U JPH01109403U JP550888U JP550888U JPH01109403U JP H01109403 U JPH01109403 U JP H01109403U JP 550888 U JP550888 U JP 550888U JP 550888 U JP550888 U JP 550888U JP H01109403 U JPH01109403 U JP H01109403U
- Authority
- JP
- Japan
- Prior art keywords
- housing
- hardness near
- brinell hardness
- tube
- brinell
- 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
- 229910001141 Ductile iron Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP550888U JPH01109403U (en]) | 1988-01-20 | 1988-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP550888U JPH01109403U (en]) | 1988-01-20 | 1988-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01109403U true JPH01109403U (en]) | 1989-07-24 |
Family
ID=31208941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP550888U Pending JPH01109403U (en]) | 1988-01-20 | 1988-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01109403U (en]) |
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1988
- 1988-01-20 JP JP550888U patent/JPH01109403U/ja active Pending