Writecon Display System is a company specializing in manufacturing writing & display board based in Calcutta, West Bengal, India, supplying boards to various educational institutions and corporate all over India. To compliment our range we are seriously on the lookout for suppliers of quality Dustless Chalks. We would like to know: 1) general information and a brief profile about your company 2) the specification of the Dustless Chalk you manufacture 3) the materials used 4) the packaging you normally follow 5) certification for the productsPlease send the information ASAP.