Dear Cherry,
Thanks for your information.
I would like to clarify w. you in below:
1. Can the gap at the bottom part be further avoided/improved? The gap at the bottom can be improvement.
Or mainly due to the tolerance of stones that this is the best cage size we can do? If we have improved the gap already. Finally, maybe that is a little gap because the stones have tolerance.
2. What is the main purpose on adding glue between cage and stone at the bottom? is it necessary? It is necessary for quality test.