PT. Saeti Concretindo Wahana (JHS System) is a private manufacturing company that established in 1982. We use “JHS Wedge Joint System”, patented internationally in 1982, as joint splice for PC pile. We produce several kind of pre-cast concrete products in approximately 7 ha outdoor plant such as pile for foundation (square pile, mini pile, tri pile); retaining wall (flat sheet pile, corrugated sheet pile, diaphragm wall, segmental retaining wall/ SRW); bridge (girder, voided slab); infra structure (U ditch); and soft soil reinforcement (PC mattress micro pile/ cermaton). Our vision is “To be a Trusted and Pioneer Company in Precast Concrete Industry”.