Having worked in the electronics business in China and Japan for a couple decades I can say that in general Japanese goods far exceed the quality of Chinese. There are exceptions of course where, for instance an American company tightly controls every aspect of the manufacturing processes (think Apple). But, in general, Japan, the culture and companies are dedicated to high quality and endless iterative improvements. They are absolutely dedicated to doing a good job. China is very different, culturally and from a manufacturing perspective all over the map. So, no question you can get a good piece of equipment from China, but lots of research and knowledge is required to be guaranteed good tech and quality construction.