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Xuefan triangular prism 18cm junior high school physical optics experimental equipment optical glass spectroscopic seven-color light rainbow photo refraction principle eighth and ninth grade science children's demonstration teaching aids

  • Unit Price:$9.57
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  • Item#:572025816083
  • Location:China
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  • Quantity: (50907 available)
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brand:
Love Billy
model:
180x40x40mm prism
manufacturer:
Wenzhou Xuefan Teaching Instrument Co., Ltd.
time to market:
2019-10-01
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