Glass rod stirring rod laboratory diversion rod solid length 15 20 25 30 cm round head
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1 700+ monthly purchase
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32006 carbon-60 structure Model High School chemical molecular structure model
1 monthly purchase
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Wind formation demonstration box demonstrator middle school physics mechanics experiment teaching instrument
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22027 Forced Vibration and Resonance Demonstrator Resonance Demonstrator Spring-loaded Senior high school Physics Teaching Instrument
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Mud triangle laboratory ceramic mud support high temperature resistant crucible support 55mm laboratory heating support
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31020 high voltage power transmission and transformation simulation demonstrator new curriculum standard Senior high school physics experiment demonstration
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32013 carbon dioxide crystal structure model chemical instrument crystal model teaching instrument
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Insect Specimen Six Benefits Six Harms 43150 Primary School Science Biology Specimen Popular Science Teaching Instrument
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21066 horizontal throwing motion experiment instrument for initial Senior high school physics experiment
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Three-ball instrument manual detachable sun earth moon sun earth moon earth moon operation teaching model instrument geography teaching aid
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20525 color block turntable pointer blank turntable learning probability problem primary school mathematics teaching aids
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Ampere force demonstrator magnetic field on the current effect experimental physics experimental equipment teaching instrument
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Children's Skeleton Model Human Skeleton Model 42cm Primary School Science Teaching Aids Assembled Biological Model Teaching Instrument
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Spring dynamometer strip box dynamometer spring balance mechanics principle experiment 1N 2.5N 5N 10N
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magnetizing device 02023 middle school physics teaching experiment equipment teaching instrument magnetizing device
20 monthly purchase
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29015 solar cell demonstrator solar energy application materials
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Three line semiconductor laser light source parallel laser light source magnetic physical optics teaching instrument
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Plastic medicine spoon double spoon small spoon color spoon laboratory small spoon 20cm weighing spoon factory outlet
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Plate dynamometer 5n teaching instrument 5N plate dynamometer 14008 mechanics spring balance plate teaching tool
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Common capacitor teaching board 23058 Senior high school physical and electrical circuit demonstration experimental instrument
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Optical convex lens imaging law measurement focal length 5cm10cm30cm diameter 3cm4cm5cm handheld concave lens
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Left and right hand rule demonstrator experimenter J24017 electromagnetism Lorentz magnetic demonstration instrument equipment teaching aids
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Wholesale mortar ceramic medicine pounding machine medicine pot medicine bowl medicine pestle Chinese and western medicine grinding bowl mashing grinding
500+ monthly purchase
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Glass measuring cylinder straight with scale high precision laboratory glassware 5/10/25/50/100/250/500
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junior high school electromagnetic induction demonstrator electromagnetic effect phenomenon physics experiment equipment electromagnetic induction demonstrator
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