JPH0543353Y2 - - Google Patents

Info

Publication number

JPH0543353Y2

JPH0543353Y2 JP16988788U JP16988788U JPH0543353Y2 JP H0543353 Y2 JPH0543353 Y2 JP H0543353Y2 JP 16988788 U JP16988788 U JP 16988788U JP 16988788 U JP16988788 U JP 16988788U JP H0543353 Y2 JPH0543353 Y2 JP H0543353Y2

Authority

JP

Japan

Prior art keywords

rod

pipe

crest

corrugated

packing material

Prior art date

1988-12-29

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

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• 239000000463 material Substances 0.000 claims description 15
• 238000012856 packing Methods 0.000 claims description 15
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
• 230000008439 repair process Effects 0.000 description 4
• 229920003002 synthetic resin Polymers 0.000 description 4
• 239000000057 synthetic resin Substances 0.000 description 4
• 230000000694 effects Effects 0.000 description 2
• 239000002184 metal Substances 0.000 description 2
• 244000043261 Hevea brasiliensis Species 0.000 description 1
• 229920001903 high density polyethylene Polymers 0.000 description 1
• 239000004700 high-density polyethylene Substances 0.000 description 1
• 238000000034 method Methods 0.000 description 1
• 229920003052 natural elastomer Polymers 0.000 description 1
• 229920001194 natural rubber Polymers 0.000 description 1
• 230000003014 reinforcing effect Effects 0.000 description 1
• 229920005989 resin Polymers 0.000 description 1
• 239000011347 resin Substances 0.000 description 1
• 239000010865 sewage Substances 0.000 description 1
• 229920003051 synthetic elastomer Polymers 0.000 description 1
• 239000005061 synthetic rubber Substances 0.000 description 1