Advantages of beryllium?

I've backed up my statements as much as anyone on Audiogon. That's all you get little troll.

Actually kosst, some of us are operating even below erik’s "low standard", and enjoy reading his posts.

Kosst is not very knowledgeable but he will give opinion without fact and without experience if you ask him to prove his BS reply’s he has nothing but weak insults. Guys a joke ignore his trolls.