Altop Industries offers Magnetic Chalkboard with Thickness 0.40. Altop Industries also is an ISO 9001:2000 accredited company. The Company also manufactures visual communications display systems like non-magnetic chalkboards, magnetic writing boards, magnetic chalkboards,ÿmagnetic presentation boards etc. The Magnetic Chalkboard with Thickness 0.40 has Korean acrylic triple resin coating and has magnetic steel surface. The Magnetic Chalkboard with Thickness 0.40 gives very less dust while erasing.