Microtunneling technology allows us to construct an accurate subsurface by installing steel pipes, reinforced concrete jacking pipes, and poly-crete pipes.

Horizontal directional drilling technology is a construction method used to cross obstacles found along the pipeline route, such as roads, rivers, etc.

Open-Face Technique is a technique for installing man-entry size of pipes to cross the obstacles found along the pipeline route.

Shafts are the doorways to the underground, serving as the location through which all material enters and exits.