First and foremost there are basically only three places in the world to get any large scale hardbound printing done, China, India, or Canada.
Now depending on how the exact process goes down, (after final proofs have been signed off on) being at the printers means that book is in the queue. After it gets printed it will still need to get bound, this may or may not be at the same location and/or company.
After the first run is done, it is scanned for printing errors (offset type etc.) and if it clears, then the full run is done. After the printing is done, the books will have to be bound, bundled, packaged, and then shipped.
Upon arrival of the shipment, a spot inspection will be made to insure the books are in a sellable condition. If that clears then they get sent out to distributors, etc.
Typical turnaround on a hardbound book from time it gets to printers until it first can be bought by a consumer - 103 days.