We produce and dispose of inner-GOODLE. We realized Koreantraditional heating system. (under-floor heating system andheating by boiler) Ondol into the product inner-GOODLE bysucceeding merits and supplementing problems within itssystem. To realize the system we introduced a revolutionaryfabricated construction system.Among those similar products worldwide only inner-GOODLEmeets themal effciency in building law. Conveniences inconstruction and its light improved building structure andsubstituted present cement mortar Ondol construction. It pioneers new frontier of construction environment.We exert to introduce the best heating system. Ondol worldwide and to create new construction and housingenvironment.