hey Claude, have you looked @ the date of this RFQ?
Maybe it is still open, but I doubt it!
also, the big SS flanges you asked about. from this buyer as well, that is from April, 3 months ago, I looked into that one, I established communications with the buyer 'til I got the quote back on the material cost ((material cost alone will send you to the poor house,)) one chunk alone was like $700.00
best wishes!
SteelCutter