JPS6235185U - - Google Patents

Info

Publication number

JPS6235185U

JPS6235185U JP12724385U JP12724385U JPS6235185U JP S6235185 U JPS6235185 U JP S6235185U JP 12724385 U JP12724385 U JP 12724385U JP 12724385 U JP12724385 U JP 12724385U JP S6235185 U JPS6235185 U JP S6235185U

Authority

JP

Japan

Prior art keywords

joints

joint

pipe

circumferential surface

underground

Prior art date

1985-08-22

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

• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
• 229910000831 Steel Inorganic materials 0.000 claims description 4
• 229910052742 iron Inorganic materials 0.000 claims description 4
• 239000010959 steel Substances 0.000 claims description 4
• 238000009434 installation Methods 0.000 claims description 3
• 239000011247 coating layer Substances 0.000 claims description 2
• 239000003513 alkali Substances 0.000 claims 2
• 239000010410 layer Substances 0.000 claims 2
• 239000011210 fiber-reinforced concrete Substances 0.000 claims 1
• 239000011521 glass Substances 0.000 claims 1
• 239000011211 glass fiber reinforced concrete Substances 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 3
• 238000012856 packing Methods 0.000 description 1