透明磁性指針教學量角器(有手柄)Magnetic teaching Protractor with indicator

材質:ABS,強力磁鐵

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貨號: AD09 分類: , 標籤:

描述

Half circle, plastic , graduated in degree ‘0o to 180o in both directions, figured every 10o. The base is provided with a handle. Length of base 50cm.

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