4mm marble laminated with 3mm aluminium poly backing, totally 8mm thick.
Largest size: 1524x2438mm.
Weight: 3.70 pounds/sq.ft (18kg/sq.m), 1/3 weight of 2cm marble slab.
Application: Interior wall, elevator, ceiling, bus,boat,etc.
Advantage: Reduce the weight and shipping cost, easy to install, save time and labor cost.