정약용의 거중기 문화유산 조립키트 과학원리 과학교구 (18180)
<img src="https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_01.jpg"><img src="https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_02.jpg"><img src="//academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_03.gif" onerror="this.src='https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_03.gif'; $(this).attr('onerror','');" ><img src="https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_04.jpg"><img src="https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_05.jpg"><img src="https://academypm.cafe24.com/03_educational_kit/18180_giant_crane3_kor_06.jpg">