Anchovy
The rotogravure printing process is used for commercial printing of magazines, postcards, and corrugated product packaging. It involves engraving an image onto an image carrier.
A commercial product is a product that can stand the use when used commercially. Some examples would be commercial grade garbage bags and commercial grade flooring.
Francium isn't available for several reasons:It is highly radioactiveIt will react extremely violently with air and waterIt is highly toxicIt is very rare (about 21 grams exist in the entire world)There is no dealer/seller who can or will sell you Francium, whatever they say about it.
Ununquadium cannot be a commercial product.
contraceptive
It is not a commercial product.
food
The first television commercial for a product was for Bulova Watches.
Innovation is the modification of an existing product or process.
to try to get you to buy their product
Rutherfordium is not a commercial product.
Francium is not a commercial product.