Internat Block Board is a superior quality product and is a combination of the strength of solid wood and the finish of a smooth surface board and thus offers an excellent sturdy base to build upon and also offers the wood work a desirable finish & strength. Conforming to IS : 1659 and manufactured out of specially selected and seasoned timber. Internat Block Boards are bonded with superior quality Phenol Formaldehyde under high pressure & temperature.