[Manufacturers supply bus straw disposable plastic straw 0.2/0.5/1/2/3/5/10m plastic dropper 0.0104,768 sold.95 so'm
[Factory supply] rubber head glass dropper scale dropper 0.5ml1ml2ml3ml5ml10ml pipette 0.026,157 sold.565 so'm
[Factory Supply] Teaching Tuning Fork Resonance Tuning Fork Wooden 256/512/440HZJ22110 Acoustics Middle School 0.065 sold.75,233 so'm
Water electrolysis experimenter demonstrator platinum electrode 30/60ml platinum teaching instrument J26001 experimental equipment 0.012 sold.51,723 so'm
Tripod Laboratory Alcohol Lamp Heating Device Bracket Tripod Lifting Chemical Experiment Teaching Instrument 0.01,808 sold.21,160 so'm
[Factory direct] glass alcohol lamp 25ml60ml150ml250ml experimental heating chemical experiment Wick 0.02,086 sold.471 so'm
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Madeburg Hemisphere Experimenter Demonstrator 21019 Vacuum Demonstration Atmospheric Pressure Experimental Teaching Instrument 0.010 sold.21,160 so'm
Gasoline engine diesel engine model J31008 four-stroke internal combustion engine fuel engine physical experiment equipment teaching instrument 0.0185 sold.210,653 so'm
[Factory supply] Newton's first law exploration experiment device Sports and force equipment physics teaching in junior and senior high schools 0.011 sold.84,638 so'm
[Factory Supply] Glass Collector 60ml125ml250ml500ml Wool Slide Chemistry Experiment Teaching 0.05 sold.2,352 so'm
Hook's law demonstrator explores the relationship between spring elasticity and elongation spiral spring group physics teaching instrument 0.02 sold.268,018 so'm
J21037 aircraft lift principle demonstrator wing lift principle aircraft lift gas convection physics experiment 0.02 sold.305,634 so'm
[Factory supply] demonstration electromagnetic relay 24014 junior high school physics experiment instrument learning equipment teaching instrument 0.021 sold.108,148 so'm
Asbestos net heat insulation heating pad laboratory heating uniform teaching instruments experimental equipment 12.5/15/20cm 0.00 sold.2,587 so'm
Magnetic molecular model magnetic molecular structure magnetization demagnetization J31010 junior high school physics experiment equipment teaching instrument 0.00 sold.103,446 so'm
Gate circuit and sensor application experiment box High School New curriculum standard and door or door non-door physics teaching instrument 0.00 sold.446,696 so'm
Gas Law Demonstrator Boyle Mariot Charlie Gelussac Ideal State High Physics Teaching Instrument 0.00 sold.728,820 so'm
Gasoline engine diesel engine model principle demonstrator metal plastic physics experiment equipment teaching instrument stainless steel 0.020 sold.210,653 so'm
Friction demonstrator J21024 friction experiment junior high school physics teaching instrument mechanics experiment equipment 0.05 sold.799,351 so'm
Single pendulum experimental equipment instrument set plastic ball steel ball measuring gravity acceleration physical experimental equipment 0.032 sold.39,968 so'm
Wave demonstrator 22015 vertical and horizontal wave demonstrator wave box physics teaching instrument experimental equipment teaching aids 0.00 sold.648,885 so'm
Centrifugal track model J21034 inertial centrifugal force roller coaster model physics teaching instrument junior and senior high school teaching 0.00 sold.164,573 so'm
Centripetal force tester Junior High School and senior high school physical mechanics J2130 demonstration teaching aids large laboratory teaching instrument 0.01 sold.244,037 so'm
Tension and pressure dynamometer 10N14012 Junior High School physical mechanics experiment equipment teaching instrument two-way dynamometer 0.00 sold.131,188 so'm
Spring vibrator air cushion type with air source horizontal air cushion type J22018 simple harmonic vibration law experimental device demonstrator 0.00 sold.178,679 so'm
Parallelogram rule of magnetic force demonstrator strip box dynamometer force synthesis decomposition teaching instrument 0.00 sold.282,124 so'm
Cutting magnetic induction wire induction current sensitive galvanometer square coil bar hoof magnet electromagnetic induction set 0.0750 sold.47,021 so'm
Centripetal force demonstrator J2130 junior high school physics mechanics demonstration teaching aids large laboratory teaching instrument 0.00 sold.244,037 so'm
Biological dissector 7-piece seven-piece set 4-piece four-piece dissecting knife blade standard needle dissecting needle dissecting scissors tweezers 0.0214 sold.41,849 so'm
Bearing model detachable 31002 junior high school physics experiment equipment teaching instrument rolling sliding bearing demonstration 0.00 sold.122,254 so'm
Biological Slice Making Tool Junior High School Biology Experiment Dilute Iodine Slice Staining Absorbent Paper Slide Cover Glass 0.00 sold.7,054 so'm
Plane mirror imaging experiment device demonstrator junior high school physics optical experiment equipment candle light reflection imaging 0.028 sold.51,723 so'm
Double-track flat-throwing demonstration device flat-throwing motion experiment J2154 physical mechanics experiment equipment teaching instrument 0.00 sold.1,369,796 so'm
J31001 axle model physical mechanics experimental equipment teaching instrument transmission mechanics model Junior High School and Senior High School 0.00 sold.117,552 so'm
Pulley block and bracket with hook code with 5N spring balance strip box dynamometer full set of metal Junior High School physical pulley 0.00 sold.39,968 so'm