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UPKOCH Heat Conduction Demonstrator Physics Teaching Instrument Thermal Conductivity Measurement Kit Thermal Physics Equ Safety assured: designed with safety in mind, ensuring a secure and dependable experimental environment,thermal conductiBest Value Odorkle 
Odorkle 10N Dynamometer Meter Spring Scale Physics Experiment Tool, Dual Scale Display Force Measurement Instrument for [Dual Scale Measurement] Features both and kilogram scales for versatile force and mass measurements up to 10N/1kg.
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