Lever ruler and bracket teaching aluminum alloy lever balance condition physical science teaching experimental instrument equipment weight 5.04,012 sold.37,147 so'm
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J24019 high quality hand AC/DC generator junior and senior high school physics electromagnetism experiment equipment teaching instrument 5.092 sold.446,696 so'm
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Bimetal Sheet with Handle Copper Sheet Iron Sheet Thermal Expansion Coefficient Comparison Physics Experiment Equipment Teaching Instrument Teaching Tool 5.0109 sold.70,531 so'm
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Joule's Law Demonstrator 23036 Joule's Law Experimenter Middle School Physics Experiment Equipment Teaching Instrument 5.061 sold.131,658 so'm
Optical group with track optical group aluminum alloy track small optical bench concave-convex lens teaching instrument 5.0138 sold.164,573 so'm
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Metal hook code 50g * 10 combination hook weight 50g J11029 physical mechanics experiment equipment teaching instrument 0.01 sold.44,670 so'm
Liquid pressure and depth relationship experiment device J21009 physics teaching instrument experimental equipment can be invoiced 5.026 sold.103,446 so'm
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Battery Box No. 1 Battery) Can Be Connected to Parallel 04010 Electrical Physics Experimental Equipment Teaching Instrument 0.01 sold.5,173 so'm
Teaching resistance box 0-99999.9 Euro J23022 Physical and Electrical Test Equipment for Middle School Use 0.048 sold.282,124 so'm
Part Model of spine and vertebra spinal cord biology teaching instrument relationship between vertebra and spinal cord nerve 0.01 sold.376,165 so'm
Bud structure model plant seed embryo model junior and senior high school biology teaching display science and education instrument 4.875 sold.188,083 so'm
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Cross Clamp Iron Frame Table Accessories Chemical Laboratory Instrument Double Top Wire Turnbuckle Fixing Clip Burning Bottle Clip 5.0535 sold.13,166 so'm
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Teaching resistance box five-gear physics experiment rheostat 0-9999 middle and high school physics teaching instrument 5.026 sold.140,122 so'm
Periscope Removable Assembly Materials Optical Refraction Propagation Primary School Science Teaching Instrument 5.0167 sold.28,213 so'm
Chuda DC45MM serrated Chinese compass gift style high quality price lightweight portable north pointer 5.0157 sold.4,703 so'm
Heart anatomy model detachable magnification 3 times Heart human organ structure Anatomy medical teaching model 5.03 sold.178,679 so'm
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