- Quality are:
-1^ grade veined: goods veined with some peaces with little part of white
tatoly without knotes;
- Commercial/Semi veined: Goods veined and white mix, but without knots;
- White: goods white and with some peaces with little veined, without knots;
- Rustic: goods veined semiveined white and wih knots.

- Tollerance:
- +/- 1mm in thickness and width.

- Moisture: 8% to 12%.