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17档大教具木制算盘珠心算 可挂式教师教学算盘教具 防滑
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产品名称:精品17档木制大教具
尺寸:75*21*3.5厘米
净重:1.1公斤
材质:木框,塑料珠
内置弹簧 拨珠不下滑 做工精致 高档大方 可挂式大算盘
老师上课用的 防滑的设计 ,适合给学生做示范看。
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