Factory Direct sales specimen metal mineral specimen 49007 primary school science teaching instrument transparent boxed 0.00 sold.84,638 so'm
Synthetic organic polymer material specimen 42003 chemical experiment equipment Middle School teaching instrument 0.02 sold.70,531 so'm
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Factory Direct supply specimen soil specimen 49008 Primary School scientific instrument transparent boxed 0.00 sold.70,531 so'm
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29038 convex lens concave lens triangular prism and bracket optical experimental instrument 0.00 sold.94,042 so'm
Factory Direct sales Archimedes principle tester 21007 mechanics experiment instrument physical instrument 0.00 sold.47,021 so'm
Factory Direct electromagnet assembly material 29031 electromagnet primary school science teaching instrument 0.00 sold.44,670 so'm
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Factory Direct Micro solution conductive tester 26011 junior high school chemistry teaching instrument 0.02 sold.70,531 so'm
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Geometric shape model 30001 demonstration large cylindrical cone quadrangle cube rectangular ball mathematics teaching aids 0.00 sold.68,180 so'm
Factory Direct sales three-dimensional magnetic induction line demonstrator 24004 demonstration teaching instrument junior high school physics teaching instrument 0.00 sold.399,676 so'm
Factory Direct crude oil common fraction specimen fractional distillation specimen 42002 demonstration instrument specimen experiment 0.02 sold.61,127 so'm
Factory Direct supply specimen mineral specimen 49005 primary school science teaching specimen teaching instrument 0.00 sold.47,021 so'm
Factory wholesale rock mineral specimen 44001 junior high school geography geological specimen teaching specimen 0.00 sold.68,180 so'm
Factory Direct sales resistance law tester 23020 physical instrument Middle School physics teaching instrument 0.00 sold.235,103 so'm
Factory Direct sales resistance law demonstrator 23019 junior high school physics teaching instrument 0.03 sold.305,634 so'm
Factory Direct junior high school physics teaching instrument resistance ring 23018 5Ω,10Ω,15Ω 0.00 sold.47,021 so'm
Factory Direct Sales small lamp holder screw mouth 23010 Primary School junior high school physics electrical experiment equipment laboratory teaching instrument 0.00 sold.18,809 so'm
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Factory Direct Sales cube group 21002 Junior High School physical instruments (brass, carbon steel, pure aluminum) 0.00 sold.117,552 so'm
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