Size 8X4, 8X3, 7X4, 7X3, 6X4, 6X3, customized
Thickness 0.15-1.0mm
Grade A No discolor, No fibre, No hole, No splits
Grade B Slight discolor, small crack, No hole, No fibre
Grade C Medium discolor, Slight pin, bean hole, Light fiber
Grade D Discolor, splits, egg size holes no more than 3
