... -gardening,dock,airport,parking-lot,highway,railway,industrial engineering and other civil architecture.2.Stair treadWelded or ... factory,electric power plant,dockyard,metallurgic plant,petrochemical works,municipal construction,athletic facilities,fire passage,water-supply ... ,highway,sewage disposal plant,waterworks,mine plant,iron-works,petrochemical plant,airport and dock.7.Marine grillApplication: ...