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13 kinds of P2181XX series
Lime Water Saturated Solution Saturated Solution of Calcium Hydroxide 500mL / 2500ML
One side shows muscles while the other dissected side shows internal detail
Fragrance Free
PH50202 DC Motor Construction Kit - Build Your Own Working Motor Plant cell model compare fractionsInteractive Learning: Build your own working DC motor with the PH50202 DC Motor Construction Kit. Explore electromagnetism and motor function. Complete Kit: Includes plastic base, side supports, field coil, armature, commutator & axle assembly, wire brushes, battery clips, and battery. Sturdy & Reliable: Features a durable plastic base and side supports for stability during motor assembly. Smooth Operation: Assembled field coil, armature, commutator &
US$ 59.95
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