JPS5325043A - Method of making underdrain pipe having noohole portion - Google Patents

Method of making underdrain pipe having noohole portion

Info

Publication number
JPS5325043A
JPS5325043A JP9822676A JP9822676A JPS5325043A JP S5325043 A JPS5325043 A JP S5325043A JP 9822676 A JP9822676 A JP 9822676A JP 9822676 A JP9822676 A JP 9822676A JP S5325043 A JPS5325043 A JP S5325043A
Authority
JP
Japan
Prior art keywords
noohole
making
underdrain pipe
underdrain
pipe
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.)
Granted
Application number
JP9822676A
Other languages
Japanese (ja)
Other versions
JPS5913971B2 (en
Inventor
Takeshi Miki
Masato Takao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Bakelite Co Ltd
Original Assignee
Sumitomo Bakelite Co Ltd
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 by Sumitomo Bakelite Co Ltd filed Critical Sumitomo Bakelite Co Ltd
Priority to JP51098226A priority Critical patent/JPS5913971B2/en
Publication of JPS5325043A publication Critical patent/JPS5325043A/en
Publication of JPS5913971B2 publication Critical patent/JPS5913971B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP51098226A 1976-08-19 1976-08-19 Method for manufacturing underdrain pipe with non-porous part Expired JPS5913971B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51098226A JPS5913971B2 (en) 1976-08-19 1976-08-19 Method for manufacturing underdrain pipe with non-porous part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51098226A JPS5913971B2 (en) 1976-08-19 1976-08-19 Method for manufacturing underdrain pipe with non-porous part

Publications (2)

Publication Number Publication Date
JPS5325043A true JPS5325043A (en) 1978-03-08
JPS5913971B2 JPS5913971B2 (en) 1984-04-02

Family

ID=14214037

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51098226A Expired JPS5913971B2 (en) 1976-08-19 1976-08-19 Method for manufacturing underdrain pipe with non-porous part

Country Status (1)

Country Link
JP (1) JPS5913971B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413564A (en) * 1977-07-04 1979-02-01 Seisan Nipponsha Kk Method and apparatus for forming synthetic resin semiimesh tube
JPS5418966A (en) * 1977-07-09 1979-02-13 Ogushi Masao Method and apparatus for producing underdrain pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5413564A (en) * 1977-07-04 1979-02-01 Seisan Nipponsha Kk Method and apparatus for forming synthetic resin semiimesh tube
JPS5418966A (en) * 1977-07-09 1979-02-13 Ogushi Masao Method and apparatus for producing underdrain pipe

Also Published As

Publication number Publication date
JPS5913971B2 (en) 1984-04-02

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