Hi ricardo4833,
Yes that’s correct. They don’t make Talalay. They make 100% natural Dunlop latex both with and without an organic certification.
You can read more about Foam Factory (aka FBM, Foam by mail, and many others) in post #2 here and post #2 here and in this thread. They are not a reliable supplier and I would be very cautious in any dealings with them. If you do choose to buy anything from them then what you receive would be a “roll of the dice” in terms of the type and quality of the material and they certainly don’t sell Talalay latex (even though they say they do).
Some of the better sources of mattress components I’m aware of are listed in post #4 here.
No … not unless a label or identifying mold impression is still on the part of the full core that you receive. This is one of many reasons that it’s so important to deal with a reliable supplier.
Phoenix