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Junior high school Senior high school organic chemistry molecular structure model stick scale model stick baseball bat model experimental equipment

Large carbon 60 model diamond silica sodium chloride crystal structure c60 soccer ball ene model initial Senior high school

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silicon carbide SiC30 sphere crystal structure model silicon carbide unit cell model silicon carbide diamond structure

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Molecular Structure Model Biochemistry Atomic Ball Stick Scale Model for Junior High School Students Electronic Cloud vsepr

9-piece crystal model Crystal structure model full set of crystal structure model for teaching

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Molecular Structure Model Set Ball Stick Proportion Biochemistry Experimental Equipment Teaching Instrument for Junior and Senior High School Students

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TW-1 organic molecular model (basic type)-Molecular structure model (125Pcs)

Large Model demonstration 32004 Diamond atomic crystal crystal structure model Diamond large

32005 Graphite (Graphite) crystal structure model for large demonstration Graphite teaching model

Carbon 60 structure model (diameter 23mm)

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Small diamond cell structure model detachable student group experiment

J3111-T Chemistry Molecular Structure Model Extended Edition Senior high school Chemistry Experimental Equipment Ball Stick Proportion Demonstration

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Initial Senior high school chemical molecular structure model 1032S scale model organic matter inorganic matter splicing ball stick model

Silica crystal structure model-silica structure model-ball diameter 30-23mm combination

Carbon allotrope crystal structure model C60 graphite Diamond sodium chloride molecular structure teaching aid

Primary Senior high school Organic Chemical Molecular Structure Model 32003 Atomic Bat Scale Model Bat Model

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Junior High School Organic Chemistry Molecular Structure Model Atomic Bat Scale Model 32003 Bat Model

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Large demonstration 32006 carbon 60(C60) carbon-60 football ENE fullerene crystal structure model carbon 6

Molecular structure model Junior High School organic matter chemistry atomic ball stick scale model J3111-P scale model