My pick for the mixer category also dealt with me seeing many other listings providing the same products/market as we offer.
The thing is, we can only review what's on the website. We have no idea what you offer, other than what we see.
Just now, I picked 5 sites from the category you suggested -- mostly at random, but partly looking for sites with descriptions mentioning chemical, pharmeceutical, or custom machinery. What I saw on each one of them was: pictures of mixing products, model numbers, and/or specs.
Then I went to your site. On the front page, I didn't see anything that mentioned "mixing". Nor did I see any mention of "products" What I saw was a big button called "services" leading me to believe that you might offer a service, desigining and building custom equipment. I looked around a bit. I saw a lot of stuff about topics like design engineering, process design, and quality assurance, but never anything about mixing products. In fact, you use general language about product design, making me think you would make a variety of products.
Can you see why I don't think an editor would list your site in a category about manufacturers of mixing products? Perhaps that's what you do, but it certainly isn't clear from your site. From the web user's perspective, you look like a custom designer and builder of machinery -- hence, my suggestion.
If you are primarily a manufacturer of mixing products, and you want to be listed in that category, my suggestion to you is to make it much more obvious on your site. Not only will that help an editor, but it's also a pretty good marketing strategy -- making it easier for potential customers who are trying to figure out just what exactly your company does.
In any event, you really
should also submit to the Regional category I mentioned, regardless of what you end up doing about the Business branch listing.