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school board
Frame: champagne electrophoresis aluminous Frame .33(w)×22(d)×1.2mm(material thick)
Surface: the metal Baking finishing, thickness: 3mm.
Interlayer: double A corrugated cardboard, thickness: 10mm
Backboard: Galvanized metal board, thickness: 2mm.
Accessory: angle steel hooks.
Functions: chalk pen writing, optional for adhere paper function when electrify.
School Green Board HBP (Flat type);chalk board