What are the GYY / GY A0 index components?

[schaubach]

I'm trying to get a better understanding of exactly what the GYY / GY A0 index really represents. I've searched the internet to try to figure out what stocks make up this index, with no luck so far. Does anyone know where the list of stocks are that make up this index?

[Eye]

I was able to find something on the net. It listed
Aluminum
copper
nickel
zinc
lead.