JPH01151989U - - Google Patents

Info

Publication number

JPH01151989U

JPH01151989U JP4263588U JP4263588U JPH01151989U JP H01151989 U JPH01151989 U JP H01151989U JP 4263588 U JP4263588 U JP 4263588U JP 4263588 U JP4263588 U JP 4263588U JP H01151989 U JPH01151989 U JP H01151989U

Authority

JP

Japan

Prior art keywords

gas

pipe

inner cylinder

shield

welding

Prior art date

1988-03-29

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.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000003466 welding Methods 0.000 claims description 3
• 238000004519 manufacturing process Methods 0.000 claims description 2
• 229910000831 Steel Inorganic materials 0.000 claims 1
• 238000009751 slip forming Methods 0.000 claims 1
• 239000010959 steel Substances 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2