Altop Industries manufactures Magnetic Graph Board with Thickness 0.40. Altop Industries also is an ISO 9001:2000 certified company. The Company also manufactures visual communications display systems like non-magnetic chalkboards, magnetic writing boards, magnetic chalkboards,ÿmagnetic presentation boards etc. The Magnetic Graph Board with Thickness 0.40 has Korean acrylic triple resin coating and has magnetic steel surface. This Board has smooth surface which gives excellent advantage for writing and evolves very less dust while erasing.