Scam, almost certainly.
The scammers are getting (or trying to get) smarter though, targeting messages like this, reevied a couple of days ago . . .
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Hello Good Day
My name is Mr Gordinburg James and i would like to order or make some purchases of some glass from your company.
30 by 30 1/4 thickness temperred clear glass.
pls i would like to know if u can order some for me and the price ranges.
Thank U
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Now, this message had a very relevant reply address in the sent from line, I checked out the domain web address, and it was a very legit associated company located in Brisbane Australia, that COULD have been writing such as inquiry (although not in the poor way Mr Gordinburg James writes).
Checked out the actual header though, the reply address was yahoo, always a spammer clue, along with hotmail addresses etc.