... 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: 1. It is composed of high polymer coatings, ultra-thin steel plate(thickness: 0.135 ~ 0.2mm), and ... -reflective (glare degree ≤10 °)4.Extreme hard (≥5H ), and with a strong resistance to writing and rubbing needs (400g force ...