That looks suspect to me. I'd stay away from anything that isn't genuine product. I've been burned on too many china look-alikes to take that chance.
I bought a carb on ebay a few years back from a seller in Taiwan. Claimed it was a genuine Kehin. It was the biggest piece of garbage I ever worked on. The O-rings all swelled the minute fuel hit it. Nothing worked smoothly, the slide and floats would stick. Choke lever was made of some cheap plastic that snapped the first time I used it. I threw it in the trash before I got it anywhere near tuned (if that would even be possible).
I paid a good bit of money for that carb because it came with an intake, throttle cable, air cleaner, and assorted billet pieces for my CRF50. All of the annodizing came off the billet pieces after a few washes, the air cleaner didn't seal, and the intake aimed the carb directly into the exhaust.
$145 of junk. All of the parts were stamped with brand name logos or packaged in brand name boxes. It has to frustrate the legitimate companies out there who spent years building their good name in the market only to have some POS scumbags steal your design right down to your logo, then slap a bunch together using inferior materials and manufacturing process, then flood the market with your junk, making a quick buck before anyone catches on to your gimmick.
These companies will kill off the legitimate companies if china is allowed to keep dumping their junk on the rest of the world. I'm into pitbikes and the china knockoffs have pretty much killed the smaller companies that supported the pitbike community. The major players are still around, BBR, Fast50s, Red Baron, but all of the smaller shops got out of the scene. These were all American businesses employing the average blue collar guy. You can't compete with a giant company (sweatshop) that steals your idea then blows them out by the thousands at a fraction of the price it takes you to even produce the part.
83' ATC70
85' ATC70
83' ATC200x
96' TRX90
05' CRF50- The only thing left that hasn't been modded out are the engine cases.