First off, you can ignore "authentic" or anything like that in the description.

If it's CH knives, Sanrenmu, Enlan or the like I don't think there's fakes here.
The Sebenza and earlier the Spydercos were clones but signed as authentic or OEM.

About the CH3002, if you add the knife to your cart and type the coupon code MAP the price will be around $23. For this price it's easy to try if it's a good slicer or just a great oranje mes.

If you want real slicers though I'd always go for full flat grinds and even more so for leaf shaped blades like on most of the Spyderco knives.