steel

I'm still looking for metal to make an Aviary. I found this website which sells industrial protective fencing. Most of their products just say "steel", could that automatically mean it is not galvanized? Purchase Wire Mesh Panels, Welded Wire Mesh Panel, Wire Mesh Panel, Metal Mesh Panel...

What do you think of this playgym from an online birdstore that lots of folks recommend (see link under photo)? Does anyone have it? My main concern is the metal hardware. The nice folks at the store got the materials info from makers, but it didn't help me at all, because I don't know if...