The mechanical energy of the air compression ignition instrument is converted into internal energy. Junior high school thermal physics experimental equipment 0.00 sold.75,233 so'm
Hand Centrifugal Turret J21038 Physics Experiment Equipment Primary Senior high school Physics Teaching Experiment Instrument for Students 0.02 sold.423,186 so'm
04001 Junior High School Student Power Supply 1.5~9V/1.5A Voltage Regulator/Middle School Physics Experiment Equipment Teaching Equipment 0.00 sold.446,696 so'm
Hand Generator Primary School Science Experiment Physics Experiment Teaching Instrument Teaching Instrument 0.00 sold.141,062 so'm
Sliding Rheostat Adjustable Resistance to Change Current and Voltage Junior High School Physics and Electricity Experimental Equipment 0.00 sold.164,573 so'm
Alcohol lamp tripod metal tripod experimental bracket chemical experimental instrument student experimental teaching instrument 0.00 sold.18,809 so'm
Pressure pressure demonstrator J22121 pressure and pressure tester sponge small table physical mechanics experimental equipment 0.00 sold.18,809 so'm
Exhaust Tray with Vacuum Bell Cover Vacuum Sound Propagation Experiment Junior High School Physics Experiment Teaching Instrument 0.00 sold.258,614 so'm
Iodine Sublimation Condensation Tube Iodine Hammer Iodine Sublimation and Condensation Sealed Tube Junior High School Physics Experimental Instrument 0.00 sold.21,160 so'm
J23007 Pointer Electroscope Pointer Electroscope Electrostatic Friction Physics Experiment Equipment Manufacturers Supply 0.00 sold.282,124 so'm
Hole Punch Splint J02003 Chemistry Experiment Equipment Middle School Supplies Chemical Instruments Teaching Teaching Aids Instruments 0.00 sold.56,425 so'm
J02002 Punch Four-piece Set of Rubber Plug Punching Digital Physics and Chemistry Equipment Factory Direct Supply 0.04 sold.21,160 so'm
Foil Electroscope Teacher Demonstration Electrostatic Experiment Physics Electrical Experiment Equipment Teaching Instrument Electrometer 0.012 sold.23,511 so'm
Tray Balance Middle School Physics Experimental Equipment Laboratory Teaching Instrument Weight Frame Pan Balance 0.00 sold.131,658 so'm
Glass Stick with Silk Glue Stick with Fur Physical Friction Electricity Electrostatic Experiment Electrostatic Experiment 0.010 sold.14,107 so'm
Resistance Law Experimental Device Electrical Experimental Equipment Physics Instrument Primary and Secondary School Teaching Aids Students Use Demonstration 0.00 sold.70,531 so'm
Crucible Pliers 20cm Crucible Clamp Manufacturers Selling Thickeneded Raw Materials Laboratory Clamp Crucible Pliers 0.00 sold.21,160 so'm
Mechanics Physics Experiment Equipment 50g*10 Metal Hook Code Combination with Lever Ruler Used Middle School Teaching Instrument 0.04 sold.47,021 so'm
Steel Standard Tuning Fork 256HZ 512HZ Teaching Instrument Acoustic Tuning Fork Junior High School Physics 0.00 sold.75,233 so'm
Cylinder Set Copper Iron Aluminum Cylinder Junior High School Physics Quality and Density Physics Copper Block Iron Block Aluminum Block Density Body 0.00 sold.56,425 so'm
Micro-small Pressure Meter, Liquid Internal Pressure, Transparent Liquid Tube, Explores the Internal Pressure and Buoyancy Instrument for Liquid Internal Pressure 0.045 sold.23,511 so'm
200g*4 Metal Hook Code Combination Set 200g Primary School Junior High School Physics Mechanics Balance Experimental Equipment 0.00 sold.56,425 so'm
Current Magnetic Field Demonstrator Electrical Thread Tube New Curriculum Physical Instrument Physics Experiment Equipment 0.00 sold.117,552 so'm
Magnetic Demonstrator Box Teacher Version Experiment Box Teacher Demonstration Instrument Junior High School Teaching Aids 0.02 sold.2,752,843 so'm
04004 Junior High School Teaching Power Supply 1.5~12V Dc Regulated Output Middle School Physics Experimental Equipment Power Supply 0.02 sold.681,799 so'm
04006 High School Digital Display Teaching Power Supply Ac 2V ~ 24V Dc Regulated High Quality Teaching Power Supply 0.00 sold.1,180,859 so'm
04005 Primary School Teaching Power Supply Teaching Power Supply Scientific Experiment Teaching Equipment Digital Display Regulated 12V Power Supply 0.00 sold.775,840 so'm
04002 Student Power Supply LAborAtory Physics TeAching Power Supply 1.5-6V1A Dc Output 0.00 sold.258,614 so'm
Beveled Trolley Physical Mechanics Teaching Instrument Measuring Object Movement Average Speed 0.075 sold.47,021 so'm
Small Lamp Holder Physics Experiment Screw Socket Small Lamp Holder Junior High School Physics Teaching Instrument Electrical 0.00 sold.7,054 so'm
Light Reflection Refraction Demonstrator Teaching Instrument Junior High School Physics Optics Experimental Equipment Full Reflection 0.00 sold.141,062 so'm
04001 Junior High School Students Power Supply 1.5~9V/1.5A VoltAge RegulAtor/middle School Physics Experiment Equipment TeAching Equipment 0.00 sold.282,124 so'm
Hand Generator Primary School Science Experiment Physics Experiment Teaching Instrument Teaching Instrument 0.00 sold.75,233 so'm
Senior high school student power supply 04003 electrical teaching instrument experimental power supply Senior high school physics experimental equipment 0.00 sold.305,634 so'm
LED LighT Source F LighT Source T LighT Source Three Line Parallel Laser LighT Source New Curriculum STandard Physical OpTical Teaching InsTrumenT 0.0100 sold.30,564 so'm
Handheld Convex Lens Concave Lens Magnification Small Mirror Physics Optics Experimental Equipment Teaching Tools Instrument 0.00 sold.14,107 so'm