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青华科教仪器有限公司
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clock dial table model teacher demonstration primary school mathematics students use two needles three needles non-linkage linkage 12 hours
CN ¥ 9
qinghua 29040 insect observation box detachable magnifying bugs small animal biological science and education instrument student
CN ¥ 5.9
qinghua plastic counting ball 3 colors 15 tablets primary school math arithmetic arithmetic children teaching aids instrument color
CN ¥ 6.9
diamond sodium chloride molecular structure chemistry teaching aids model junior and senior high school teaching demonstration teaching aids
CN ¥ 58
neurological hammer rubber hammer conditioned reflex principle teaching junior high school and primary school science experimental science and education supplies
CN ¥ 9.5
locust anatomy model biology teaching science and education instrument teaching detachable medical teaching demonstration
CN ¥ 95
Caesium Chloride Crystal Structure Model Metal Connection Junior and Senior High School Demonstration Assembly Teaching Demonstration Teaching Aids
CN ¥ 62
magdeburg hemispheres junior high school physics teaching mechanics experiment science and education instrument atmospheric pressure general education
CN ¥ 59
microscope microbial cell science teaching demonstration science resource package
CN ¥ 770
parallel circuit. wind power demonstrator
CN ¥ 90
the formation of wind demonstration box mechanics science and education instrument teaching demonstration physical science exploration demonstration
CN ¥ 65
clock surface model teacher demonstration primary school mathematics science and education instrument three-needle linkage 12-hour large
CN ¥ 21
clock surface model teacher demonstration primary school mathematics science and education instrument three-pin linkage 2412
CN ¥ 8
multi-function glasses are dustproof， windproof and anti-foam
CN ¥ 13
simulation human skeleton model 85cm 42cm 85cm hanging detachable biological teaching skull bone
CN ¥ 180
alveolar model respiratory system human organs junior high school high school biology teaching aids demonstration medicine
CN ¥ 75
air compression ignition instrument air work thermal energy mechanical energy junior and senior high school physics teaching aids science and education instruments
CN ¥ 24
qinghua count stick bar primary school mathematics color children‘s oral arithmetic demonstration small stick length 10cm
CN ¥ 3.5
plate spring dynamometer 10n newton physical mechanics experimental equipment teaching aids primary and secondary school teaching instrument
CN ¥ 6
qinghua stomach anatomy junior and senior high school biology teaching instrument human organ medical demonstration natural large stomach wall
CN ¥ 55
Qinghua Nasal Cavity Anatomy Model Human Organ Nose Teaching Aids Model Junior and Senior High School Biology Teaching Instrument
CN ¥ 55
qinghua protein secondary structure teaching aids model a stick biological equipment factory sales
CN ¥ 170
dental model dental model brushing model teaching model early education dental model detachable model
CN ¥ 55
elbow joint activity model junior high school and senior high school biology teaching model science and education instrument teaching aids for demonstration teachers
CN ¥ 95
heart 3 times larger model junior and senior high school biology teaching aids science and education instrument teaching medical demonstration
CN ¥ 60
qinghua 33216 liver， twelve finger intestines， pancreatic biological model biological science and education instrument human organ medicine
CN ¥ 65
explore human encyclopedia skeleton structure book figure whole body model skeleton simulation organ internal organs our body
CN ¥ 168
ear anatomy model teaching aids 6 times larger human ear anatomy medical demonstration of organ biology teaching
CN ¥ 99
counting sticks strip primary school mathematics color children‘s oral arithmetic teaching aids demonstration thin stick long 10cm
CN ¥ 3.5
burning spoon chemical experiment science and education instrument burning spoon junior high school high school demonstration teaching equipment
CN ¥ 2
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