JPH03123183U - - Google Patents

Info

Publication number
JPH03123183U
JPH03123183U JP3246490U JP3246490U JPH03123183U JP H03123183 U JPH03123183 U JP H03123183U JP 3246490 U JP3246490 U JP 3246490U JP 3246490 U JP3246490 U JP 3246490U JP H03123183 U JPH03123183 U JP H03123183U
Authority
JP
Japan
Prior art keywords
tube
concrete layer
outer periphery
exterior plate
metal tube
Prior art date
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
Application number
JP3246490U
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP3246490U priority Critical patent/JPH03123183U/ja
Publication of JPH03123183U publication Critical patent/JPH03123183U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Rigid Pipes And Flexible Pipes (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例の推進管の縦断面図
、第2図は第1図における要部の拡大断面図、第
3図および第4図はそれぞれ本考案の他の実施例
の推進管の要部の拡大断面図、第5図は従来例の
推進管の縦断面図、第6図は従来例において推進
時に生ずる問題点を表わした推進管の要部の拡大
断面図である。 1……推進管、2……金属管、3……コンクリ
ート層、4……被覆板、5,8……折り曲げ部。

Claims (1)

    【実用新案登録請求の範囲】
  1. 金属管の外周にコンクリート層を形成し、この
    コンクリート層の外周を外装板で被覆した推進管
    において、外装板の端縁部を金属管の径方向の内
    向きに折り曲げたことを特徴とする推進管。
JP3246490U 1990-03-27 1990-03-27 Pending JPH03123183U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3246490U JPH03123183U (ja) 1990-03-27 1990-03-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3246490U JPH03123183U (ja) 1990-03-27 1990-03-27

Publications (1)

Publication Number Publication Date
JPH03123183U true JPH03123183U (ja) 1991-12-16

Family

ID=31535457

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3246490U Pending JPH03123183U (ja) 1990-03-27 1990-03-27

Country Status (1)

Country Link
JP (1) JPH03123183U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190003228A (ko) * 2017-06-30 2019-01-09 (주)아모레퍼시픽 브러시 및 이를 포함하는 마스카라 용기

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190003228A (ko) * 2017-06-30 2019-01-09 (주)아모레퍼시픽 브러시 및 이를 포함하는 마스카라 용기

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