"Stuor", huh?
Haven't seen them before now. Congratulations, you've found the epicenter of fake blades. I mean, $23.26 for a Ma Long Hurricane Long V? That's not to say they're bad blades.. the only way to tell is to buy one and see, fortunately they don't cost much. Just be aware of what you are paying for. The photos, at least, look nice. There are a bunch of "Stuor brand" blades that look like they're worth trying, but I'm pretty sure they're taking the names of players in vain. Harimoto probably has nothing to do with their Harimoto blade.. though it might be a copy (who knows how close of one) to the Butterfly item.
Boer, by the way, is one of those Chinese brand names associated with, how do I describe it - off brand hobbyist stuff. Others include Huieson and Timo Boll. Mainly blades (some of these are actually quite nice) and weird, off-brand, non-ITTF approved rubbers. I've had some Boll rubber in the past, they seem OK and are definitely usable (about equivalent to 729) and I bought a sheet of Boer-brand "Sriver-HE" recently, which also seems decent, though I haven't tried playing with it. I must admit, the PACKAGING was really impressive, they even removed two corners, Provincial H3 style. I wouldn't have bought it except that it cost less than $3 including shipping. Maybe if you had to make up ten bats to loan to visitors at a club (if you ran one of those bar-type clubs) Sriver-HE would be the thing to get. or if you were building a rebound board.
If I were running one of these off-brand outfits, what _I_ would do is offer rubber that is significantly thicker than is legal, with, say, 2.8mm sponge. Why? Because someone could generate significantly more speed and spin with these rubbers, and when people notice this the word would spread and they'd sell a ton of these sheets to the Chinese rec-club player crowd (of which there are tens of millions). From what I've heard at this level they don't care too much about equipment rules in China.
Iskandar