This is a Meranti or Luan bending plywood in a 3/8″ (9mm) thickness. Plywood has 5 layers. This plywood is used for forming. Plywood is a paint-grade face and can have mineral streaking, small knots and other slight imperfections.
The barrel bend plywood has grain running the 4′ direction and bends the 8′ direction to a full 360 degrees.
The column bend plywood has grain running the 8′ direction and bends the 4′ direction 360 degrees.