Solid wood floor is divided into all A board AB board, and so what is the difference between how to distinguish
The so-called AB board, is the manufacturer, the class A and B level according to a certain proportion of doping together, so simply to say the difference between the A board and AB board, the essence is to see you buy the AB board, the number of doping level a board and B board.
AA in the surface does not allow wormholes, knot, paint bubbles, etc.......B version of the above issues are allowed within a certain range of. For example, the layout can have a little bug, knot, paint is not obvious bubble, jaw defect, to a certain extent, are permitted,.
All A board and AB board, before leaving the factory, there is a pick inspection procedures, in accordance with the national standard GB15036-2009. Sub AA level a level B.
