No problem with Your answer. Usually I being in the same business rush.
In this days and under Your advice and some technical calculations I change my inquiry.
As swimming pools always full of water with chlorine and acid (for reduce pH level), I can't use Aluminum Honeycomb. I going to use PP honeycomb panels. At the same time, for construct one-piece pools, I need very large panels (for pool bottom and walls up to 10 meters). That's why I going to produce large PP Honeycomb Wall-panels on my factory. I going to make large one-piece panel and cover it of a few granite/marble slabs 1000x1500x5mm
Dear Sam, could You make just granite/marble slabs 1000x1500x5mm without honeycomb or any other reinforcement?
Thank You
Sincerely