The only thing the Chinese are good at is stealing technology and industrial secrets from other countries. The Chinese tech empire was built upon industrial espionage. Little to nothing truly innovative originates in China.
OH YEAH? Well what about General Tso's chicken? And coolie hats? And them little ceramic cats that wave to you?
Like with everything else, you have to totally understand what it is you are trying to copy to understand how to keep it going. Very few people understand there is a ‘grain’ in all metals and those properties will make and break any attempts to copy it without knowing why the grain exists as it does. Their continual failures at real working copies only exemplifies this.
Now that the blush is off the rose, stealing that tidbit just became exponentially tougher.