Aussie bob

I have just bought a set of irons by Gauge Design. These are field irons fitted with NSPro shafts, can anybody tell me about them. I read so much stuff about the name of the clubs and its very confusing. I have to say they are one of the best irons and shaft combos i have ever hit, but i would like to find out a bit more about where they are made etc, can anybody help please. The other thing is i got a Srixon ZW 600 driver and i am told they were only released in Japan, is this true.