If I could ...
I have been to China a couple of times and my wife goes there quite often as she works for an airline.
I have purchased Items and received gifts that were considered knock offs. Most of these being luxury goods. Most of the knock off stuff will last for a year at the best. Sometimes you will get a good quality knock off that might last longer.
The only thing that we now buy in China is prescription eye wear- glasses and sunglasses, not contact lenses.
I won’t use any electronics that are sold in the markets in China. These are not subject to rigorous QC as they would be if going to the general marketplace. If I were to have a fire or suffered an injury as a result of using a knock off electronic, I doubt my insurance will cover anything.
I would pass on a carbon frame from China or at least, anything sold that is not from a reputable brand. Your only asking for disappointment, potential injuries with no recourse. These knock off manufactures come and go and they will certainly deny ever having made it let alone selling it.
I hate spending a lot of money, but you get what you pay for.