science and technology small production diy student spring scale handmade dynamometer chest expander children‘s science small experiment material package
科技小制作diy学生弹簧秤 手工测力计拉力器儿童科学小实验材料包
EXW Price:Min. order:
¥3.77
≥1/set
¥3.51
≥50/set
¥3.25
≥500/set
1 set
Exchage Rate 1 CNY ≈ 0.1432 USD
Weight0.5 kg/set
Stock num
989273 set
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