Credit for this post goes to Chris.
Here is a list of where the following models of Kawai pianos are made:
K200 made in Indonesia
K300 are made both in Indonesia and Japan.
K400 Made in Japan solely
K500 Made in Japan solely
K600 Made in ...
All pianos have cast plates to provid stability. The early pianos did not have a cast plate and of course the tuning would really not hold well.
The strings attach to the plate and the other end in the pin block. Since you cannot drive tuning ...