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such as main shafts
then give the wheel a gently push
the car comes with a rechargeable lithium battery and USB charger
Exquisite Appearance: The shape of the tractor headstock is realistic and full of creativity
a built-in Li battery for continuous use for 24 hours on one charge and a glass cover lined with cotton for protection
STEM Educational DIY Kit Build Your Own Stirling Engine 3pcs Set Type_ENJOMOR® Brand such as main shaftsSterling Engine 3 Piece Set STEM STEAM Educational Models Explore the Mystery of Heat Energy and Create the Perfect Classroom or Home Experiment Tool! This Sterling Engine 3 Piece Set is specially designed for physics, engineering, energy conversion, and thermodynamics courses, featuring three classic Sterling engine models: Low Temperature, High Temperature, and Regenerator type engines. Through hands on experiments, students will gain a deep
US$ 1049.50
US$ 56.00
US$ 699.50
