Half-precast rainwater storage tank

WATER-WALL

Eddy current control type outflow control device

VORTEX-VALVE

Non-powered swirl-type impurity removal filter

UNI-FILTER

Earthquake-resistant BOX CULVERT

SJ-BOX

National BOX CULVERT Association Type

BOX CULVERT

Arch-shaped culvert for high soil cover

ARCH CULVERT

Assembled circular manhole

UNI-HOLE

Assembled box manhole

S-HOLE

Assembled manhole for high drop

SPIRAL MANHOLE

Custom-made manholes

Precast Special Manhole

External pressure pipe/thrust pipe

RC Pipe

Glass fiber reinforced tube

SEMISHIELD PIPE (SSP)

Flexible RC Pipe

FX PIPE

High water pressure, great depth, and sharp curve compatible jacking pipe

Synthetics Steel Pipe

Split type φ3000 super thrust tube

Assembled extra-large diameter Jacking concrete pipe

Storage-type infiltration system

ARCHISS

Earthquake-resistant U-shaped waterway

SJ-U