I'm an American industrial designer. I've been designing and going to the Taiwan, China factories to develop fitness equipments for 10 years.
Asian factories have a different set of priorities and constrains. They're all about how to make it with their current tools and efficiency in production. To overcome the "NO, we can't do that". Here are my suggestions through experience.
1. Learn what the have to work with.
2. Communication is the key. The one that does the actual development does not speak English. Use more pictures less language.
3. Control the overall innovation, leave room in the innovation for the factory to fill in the blank. Control more details on later samples. This way factory is less overwhelmed and will not reject difficult ideas.
Let me know if this is helpful, then I'll provide more details.
Keep on design and innovate! Cheers
- Position lockable inversion table, only one of its kind in the world.