YapiData has two firm<br/>1-YapiData Engineering - Design<br/>2- YapiData Evrensel Endustrialed Structural Systems Ltd.- percast structural prestressed elements same as Prefabrication<br/>a- prestressed EPS void concrete ortotrop structural precast panel system for floor,bridge e.c.t<br/>b- prestressed EPS void concrete ortotrop structural wall precast panel for building structural panel elements<br/>c- prestressed concrete foundation precast structural special elements and post tensioning foundations