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多维万向板：由2块板体和左、右、上、下双重轨道组成，2块配重铁与板体等重钢丝绳传动，达到升降作用。产品性能体现在即能左右平移又能升降同时使用，充分达到多种板型混合效果，适合于跨度较大教室使用。材质可按用户要求选用烤漆板面或搪瓷钢板面。
