Garasu risaikuru-zai o mochiita gesuidō kanro shisetsu no umemodoshi ni kansuru enshin mokei jikken
Series: Doboku Kenkyūjo shiryō -- dai 4110-gō
Publisher: Doboku Kenkyūjo
Published: 2008
Place of publication: [Tsukuba-shi]
Language: jpn
Number of pages: 100
Subjects: Sewer-pipe; Materials
Notes: Cover title.