Drawing board 1,Notice board,With magnet 2,Non-reflective,double-sided use 3,zero flying-dust,low-frequency spectrum 4,welco Drawing board: specifications: ... high-temperature process. The overall panel is flat (flatness>3). Non-deformation, double-sided use, and long life.2 ... /T3305C).3.The colour achieves clarity and softness. Non-reflective (glare degree ≤10 °)4.Extreme hard (≥5H ), and with a strong ...