JPS63185981U - - Google Patents

Info

Publication number

JPS63185981U

JPS63185981U JP7770987U JP7770987U JPS63185981U JP S63185981 U JPS63185981 U JP S63185981U JP 7770987 U JP7770987 U JP 7770987U JP 7770987 U JP7770987 U JP 7770987U JP S63185981 U JPS63185981 U JP S63185981U

Authority

JP

Japan

Prior art keywords

pipe

corrosion

joint body

joint

resistant

Prior art date

1987-05-23

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

• Espacenet
• Global Dossier
• Discuss

• 238000005260 corrosion Methods 0.000 claims description 6
• 230000007797 corrosion Effects 0.000 claims description 5
• 238000003780 insertion Methods 0.000 claims description 2
• 230000037431 insertion Effects 0.000 claims description 2
• 238000012856 packing Methods 0.000 claims description 2
• 230000002093 peripheral effect Effects 0.000 claims 3
• 229910000831 Steel Inorganic materials 0.000 description 1
• 239000010959 steel Substances 0.000 description 1