ironwork

Work in iron, such as gratings and rails.

Objects and parts of objects made of iron, as locks and keys, utensils, parts of a building, of a vessel, or the like: as, ornamental ironwork.

Anything made of iron; — a general name of such parts or pieces of a building, vessel, carriage, etc., as consist of iron.

Anything made of iron, or consists largely of it, especially when used for decoration.

work made of iron (gratings or rails or railings etc)