science and technology small production stethoscope kindergarten primary school science small experiment diy assembly manual invention experimental materials
科技小制作听诊器 幼儿园小学科学小实验DIY组装手工发明实验材料
EXW Price:Min. order:
¥3.25
≥1/set
¥3.12
≥99/set
¥2.99
≥500/set
1 set
Exchage Rate 1 CNY ≈ 0.1432 USD
Weight0.5 kg/set
Stock num
371277 set
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