Wheels on F1 cars are pretty much so close they are almost exchangable. Wings, rockets, spacecraft, computer mice, microwaves.
Notice how these whingers are constantly on China's case. Only China. They don't care about others because others are not close to challenging their privileged position at the top. Not even close to being challengers. China is too worrying for them.
It took 3 days for whingers to start reporting on this little sail design. When there are countless examples of this sort of thing going on. They lack the depth of understanding of the details - the Chinese design being done around the same type as the Swedish one and at best/most copying the concept which would require the Chinese engineers to master the physics and the technology regardless. That's the hard part!
Copying and making something work is not easy because it always requires a total understanding and near complete mastery of every bit of required base science and specific technologies that are associated with it. The Soviets could copy well, the Americans, the Chinese etc. The Indians could not. They screwed up builds with given kits and total hand holding. Master the why before the how.
Unfortunately for China, it was the latest country to rise up and after it none have truly progressed anywhere close to how much China has. The initial efforts did and do require a lot of copying and propping up. China had the Soviet Union's initial friendship and alliance to thank for the first industry boost. Without learning, it is impossible to catch up. The west would prefer everyone stay away from learning and forever hold the reigns of power, focused exclusively in the hands of those who sit at the top of the capitalist chain in the west. Every single nation/empire/civilisation (well almost all and certainly the west) only ever got somewhere and caught up when behind because they learned a lot from others. In some cases, they learned and copied close to everything ... ahem Romans. It wasn't even that long ago when the western colonial powers competed and copied from each other. And produced countless propaganda which is silly and evil in hindsight.
In the past China was arrogant and assumed it was superior and was taught a harsh lesson by the west. Now it is the west that is supremely arrogant and assume it is faultless while China now realises there are lessons to learn in every corner and ideas to use. They want to call it stealing but if I know how it works, then it is no more exclusive to the first one to have done it. If that were the case, then the West should give up everything they did using Indian numerals, or Chinese paper ... ahem gunpowder? Once I learn how to do basic calculus from my high school maths teacher, that knowledge isn't exclusively hers. I may (and have) surpassed her mathematical knowledge even though 20 years ago that may not have been the case.
At one point in history, Chinese pagodas would have stood taller than any Anglo structure. Egyptian pyramids? Does that take anything away from 19th century American (majority Anglo descendents) building skyscrappers that put Chinese pagodas and Egyptian pyramids to shame in height? How silly it would be for a Chinese person to laugh at preliminary skyscrapper architecture being done in the west. How silly it would be for the westerner to laugh at Chinese efforts now. Forget that China leads telecomm and IOT technologies now.