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Teaching instrument | 2,000+ products
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longitudinal and transverse wave demonstrator box-type longitudinal wave transverse wave physics experimental equipment teaching instrument experimental instrument
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real human vascular bypass surgery simulation suture training microsurgical vascular anastomosis end-to-end anastomosis
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Light three primary color synthesis tester junior high school grade eight or nine physical optical experiment equipment teaching instrument
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Advanced Full Function Nursing Man Training Model (male)
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