JPH036671Y2 - - Google Patents

Info

Publication number

JPH036671Y2

JPH036671Y2 JP10489285U JP10489285U JPH036671Y2 JP H036671 Y2 JPH036671 Y2 JP H036671Y2 JP 10489285 U JP10489285 U JP 10489285U JP 10489285 U JP10489285 U JP 10489285U JP H036671 Y2 JPH036671 Y2 JP H036671Y2

Authority

JP

Japan

Prior art keywords

ceramic

manhole cover

manhole

main body

sewage

Prior art date

1985-07-11

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

• Espacenet
• Global Dossier
• Discuss

• 239000000919 ceramic Substances 0.000 claims description 6
• 239000002184 metal Substances 0.000 claims description 5
• 229910052751 metal Inorganic materials 0.000 claims description 5
• 238000005260 corrosion Methods 0.000 description 3
• 230000007797 corrosion Effects 0.000 description 3
• 239000010865 sewage Substances 0.000 description 3
• 229910001018 Cast iron Inorganic materials 0.000 description 2
• 238000005524 ceramic coating Methods 0.000 description 2
• 230000000694 effects Effects 0.000 description 2
• JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• 238000005299 abrasion Methods 0.000 description 1
• 239000000428 dust Substances 0.000 description 1
• 239000007789 gas Substances 0.000 description 1
• 239000010797 grey water Substances 0.000 description 1
• 239000002440 industrial waste Substances 0.000 description 1
• 230000002093 peripheral effect Effects 0.000 description 1
• 238000007750 plasma spraying Methods 0.000 description 1