Ministry of Land, Infrastructure, Transport and Tourism: Compliant with the Public Building Equipment Construction Standards! Lineup of φ900 and φ1200!
It is a street and drainage manhole according to the Ministry of Land, Infrastructure, Transport and Tourism standards.
Large water channel compatible with variable gradient and stepped structures - U-shaped water channel.
NEXCO, large open channel compliant with Ministry of Land, Infrastructure, Transport and Tourism standards PUL-L
The flat side structure can be installed along existing structures! The lid has the same durability but weighs 1/3, reducing transportation costs! Reducing labor costs!
Integrated L-shaped retaining wall for vehicle protective fence, Gr. L-shaped retaining wall




























































































































