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青华科教仪器有限公司
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mulberry history silkworm specimen science and education instrument biological observation experimental teaching demonstration experimental equipment
CN ¥ 32
item card shopping simulation card science and education instrument cognitive thing desktop game teaching
CN ¥ 3.5
plane mirror and bracket junior and senior high school physics optics science and education instrument teaching demonstration principle of light
CN ¥ 6.5
clock dial table model teacher demonstration primary school mathematics science and education instrument two needle linkage 12 hours
CN ¥ 8
clock surface model teacher demonstration primary school mathematics science and education instrument three-pin linkage 2412
CN ¥ 8
Cylinder Dynamometer 1n Newton Physical Mechanics Experimental Apparatus Teaching Aids Primary and Secondary School Teaching Instrument
CN ¥ 7.9
tension spring spring junior high school physics experimental apparatus mechanics science and education instrument teaching aids primary school science
CN ¥ 3.5
activity calendar of qinghua science and education equipment and teaching aids （for demonstration）
CN ¥ 16
qinghua new curriculum standard 30406010101 large number carry model primary school mathematics teaching aids teaching instrument learning
CN ¥ 52
common crude oil fraction specimen science and education instrument experimental equipment for chemistry teaching in junior and senior high schools
CN ¥ 20
electric ball test junior high school physics electrical experiment equipment science and education instrument mobile electric ball electrostatic experiment current
CN ¥ 7
Mineral Crystal Ore Specimen Box Consists of 15 Kinds of Ore Teaching Students
CN ¥ 35
silkworm life history specimen junior high school biology teaching science and education instrument experimental equipment
CN ¥ 34
storage box medicine box storage box storage box science and education instrument biological tools transparent medical
CN ¥ 49
planarian model biology lab teaching aids demonstration teaching students
CN ¥ 80
triangular plate set class ii primary school mathematics protractor compass teaching aids plastic drawing tape handle
CN ¥ 15
amphioxus model for teaching demonstration of biological model laboratory
CN ¥ 80
demonstration device of plant photosynthetic respiration and transpiration biological science and education instrument experiment in junior and senior high schools
CN ¥ 90
plane mirror imaging tester junior and senior high school physics science and education instrument experimental equipment
CN ¥ 14
simple first aid box family first aid box medicine box biological box science and education instrument school medical room
CN ¥ 105
cell flow mosaic model assembly junior and senior high school biology teaching demonstration equipment science and education instrument
CN ¥ 89
original secondary coil junior high school physics experiment demonstration science and education instrument electromagnetic induction solenoid
CN ¥ 13.5
three primary colors of pigment junior high school physics experiment instrument teaching demonstration science and education instrument
CN ¥ 7
rolling pendulum middle school physical mechanics kinetic energy potential energy conversion mechanical energy transformation experimental science and education instrument
CN ¥ 47
owl simulation model biology teaching science and education instrument junior and senior high school specimen animal ornaments
CN ¥ 45
bud structure model plant model junior and senior high school biology teaching display science and education instrument medicine
CN ¥ 75
chloropline structure model microstructure junior and senior high school biology teaching model science and education instrument
CN ¥ 55
woodpecker simulation model biology teaching science and education instrument junior and senior high school specimen animal ornaments
CN ¥ 45
mussel anatomy model junior and senior high school biological science and education instrument medical research teaching demonstration
CN ¥ 65
Gourd Moss Life History Specimen Experimental Apparatus Teaching Instrument Biology Junior High School Teaching
CN ¥ 28
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