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青华科教仪器有限公司
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heart beat and blood flow rotation model dynamic demonstration biological experiment equipment teaching instrument electric teaching aids
CN ¥ 600
deflagrator junior high school physics experiment instrument teaching demonstration science and education instrument explosive
CN ¥ 50
electricity test feather junior and senior high school physics electrostatic teaching demonstration experiment science and education instrument electromagnetism
CN ¥ 11
demonstrate the original auxiliary coil lenz‘s law physics experiment teaching science and education equipment for junior and senior high schools
CN ¥ 29
qinghua science and education archaeopterus fossil and restoration model biological science and education instrument primary school high school science
CN ¥ 90
battery box no. 1 battery series parallel physical experiment science and education instrument 4 assembly primary school science
CN ¥ 7
thermal expansion and cold contraction experimental material small solid body expansion physical science and education instrument primary school science
CN ¥ 23.9
qing hua chu science and education instruments and experimental equipment teaching aids for chemistry teaching in senior high school
CN ¥ 37
qinghua lens and its application experimental apparatus high school physics optics experimental teaching aids demonstration science and education instrument
CN ¥ 14
demonstration of the original secondary coil lenz law junior and senior high school physics experiment teaching science and education equipment
CN ¥ 27
single pendulum primary school science teaching science and education instrument physical mechanics experimental equipment swing ball thin wire
CN ¥ 4
plate structure and surface morphology model geography demonstration teaching science and education instrument for junior and senior high schools
CN ¥ 180
Qinghua Current Magnetic Field Demonstrator Electric Solenoid Ring Current Square Coil Teaching Instrument
CN ¥ 89
blank turntable pointer turntable primary school mathematics science and education instrument preschool education teaching aids regular probability
CN ¥ 7.5
rotary rack electrostatic exploration physics experiment science and education instrument primary school science glue glass stick cooperation
CN ¥ 7
qinghua children‘s teaching aids magnetic jigsaw puzzle enlightenment assembling building blocks wooden toys early childhood intelligence development brain learning
CN ¥ 35
clock dial table model teacher demonstration primary school mathematics science and education instrument two-needle single movement 12 hours large
CN ¥ 20
qinghua new curriculum standard primary school mathematics magnetic idea map blackboard sticker folding line statistical chart lattice japanese character grid sticker teaching aids
CN ¥ 48
bearing model junior and senior high school physics experiment equipment sliding bearing rolling bearing science and education instrument
CN ¥ 22
qinghua new curriculum standard 30306008301 primary school mathematics teaching aids hundreds of tables magnetic coordinate lattice diagram blackboard stickers
CN ¥ 68
Qinghua New Curriculum Standard Grade 1-3 Magnetic Teaching Aids 30306007201 Students Primary School Mathematics school Supplies
CN ¥ 369
fold structure and its geomorphic evolution teaching aids model geography teaching demonstration science and education instrument for junior and senior high schools
CN ¥ 130
metal hook code set of 10 50g physical balance scales hook code teaching equipment roller skating
CN ¥ 21
qinghua flammable storage cabinet flammable liquid fire safety cabinet/explosion-proof cabinet dangerous goods storage cabinet safety
CN ¥ 9,200
fault structure and its base graben development model geography teaching aids science and education instruments for junior and senior high schools
CN ¥ 125
thermal expansion and cold contraction experimental material large solid body expansion teaching aids physical science and education instrument primary school scientific demonstration
CN ¥ 32
demonstration device of crust change high school geography geology landform movement teaching demonstration geography landform
CN ¥ 195
handheld sieve 3 specifications coarse dense fine sample sieve primary school scientific science and education instrument experimental equipment
CN ¥ 7
collection circle primary school mathematics science and education instrument demonstration concept teaching aids cognitive problems students
CN ¥ 3.5
bar box force measuring 1n newton meter junior high school physical mechanics experiment science teaching instrument teaching demo
CN ¥ 5.9
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