JPH0332873Y2 - - Google Patents

Info

Publication number

JPH0332873Y2

JPH0332873Y2 JP4711287U JP4711287U JPH0332873Y2 JP H0332873 Y2 JPH0332873 Y2 JP H0332873Y2 JP 4711287 U JP4711287 U JP 4711287U JP 4711287 U JP4711287 U JP 4711287U JP H0332873 Y2 JPH0332873 Y2 JP H0332873Y2

Authority

JP

Japan

Prior art keywords

sleeve

piping

floor slab

box body

screwed

Prior art date

1987-03-30

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

• 238000012856 packing Methods 0.000 claims description 11
• 229910001018 Cast iron Inorganic materials 0.000 claims description 3
• 230000002093 peripheral effect Effects 0.000 claims description 2
• 239000012530 fluid Substances 0.000 description 11
• 238000005266 casting Methods 0.000 description 4
• 230000007547 defect Effects 0.000 description 4
• 230000000694 effects Effects 0.000 description 3
• 238000000034 method Methods 0.000 description 3
• 238000010276 construction Methods 0.000 description 2
• 238000009429 electrical wiring Methods 0.000 description 2
• 230000035515 penetration Effects 0.000 description 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• 230000001010 compromised effect Effects 0.000 description 1
• 230000003247 decreasing effect Effects 0.000 description 1
• 238000005553 drilling Methods 0.000 description 1
• 238000005516 engineering process Methods 0.000 description 1
• 239000002737 fuel gas Substances 0.000 description 1
• 239000007789 gas Substances 0.000 description 1
• 239000011810 insulating material Substances 0.000 description 1
• 238000003754 machining Methods 0.000 description 1