To right setup of node connect :
- In your scene File -> Append (shift+F1) -> Select “Metal_Bronze_CGW.blend”->
- Material -> “Metal_Bronze_CGW” to load already setup material;
- NodeTree - to add only steel node, if you want add it in your material. After that you can add node: Node Editor -> Add -> Group -> Metal_Bronze;
- Connect Texture Coordinate node (Object) to mapping sockets in Bronze shader;
- Connect outputs to appropriate Material output sockets.
To conrtoll of Global scaling of material, use node Mapping (Add -> Vector -> Mapping)