I have searched the website of my local big box hardware store (in Australia) for Baltic Birch Plywood with no results. They do, however, have Marine Grade Plywood.
The product description states:
Hardwood Plywood with "AA" grade face and back and marine grade bond. Excellent veneer quality makes this product ideal for staining and painting. Marine bond will not deteriorate due to moisture exposure. Excellent strength and stiffness.
"AA" grade face and back
Marine strength bond
Full hardwood construction
Excellent strength and stiffness
Are these products the same or similar?