[TheForge] metallurgy question

[Jeff Wilson]

Off hand I don't know when it was developed.
----- Original Message ----- 
From: "Andrew Vida" <osan at netlabs.net>
To: "Blacksmithing List Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Saturday, May 28, 2011 4:59 AM
Subject: Re: [TheForge] metallurgy question


> 120?  How recent a development is that one?  Just wondering.
> 
> Jeff Wilson wrote:
>> That is correct. and  HY 120.
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