Large demonstration 32007 sodium chloride crystal model Crystal structure model sodium chloride salt crystal model

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

Large size diameter 40mm30mm large molecular model 170 pieces 66 atoms XMM-601 for teachers

Organic chemistry club Model High School molecular structure model 32003 organic chemistry molecular structure model

32003 organic chemistry club model molecular structure model teacher demonstration new curriculum standard for high school teaching

SW-810-810-piece set of 338 atoms super large set of inorganic organic molecular chemical molecular structure model

High school students use high-order version 194 atoms large sets of organic molecules bat model structure inorganic molecules

XMM-015 organic chemistry ball stick model molecular model molecular structure model teaching model

Foreign trade export recommend xmm-014 157-piece set organic molecular structure model ball stick proportion model

Xcm-028 301 accessories Crystal Structure Model 4-piece Diamond graphite Sodium Chloride Copper surface Center

Hybrid orbital model molecular orbital model ethane ethylene acetylene benzene molecular structure π bond σ bond

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

Diamond model 32004 crystal structure model Diamond Diamond Diamond Crystal model

Ice Crystal Structure Model 35 Water Molecules Composition Crystal Model H2O Ice Cell Model Water Molecules

XMM-004 32005 Graphite crystal structure model (Graphite)-Crystal structure model Graphite

J3123 caesium chloride CsCl crystal model caesium chloride crystal structure model caesium chloride

XCM-006 32006 carbon 60 model C60-fullerene crystal model Crystal structure model

Foreign trade recommend 141PCS 141PCs set of 50 atomic balls organic chemistry model molecular model for students

Initial Senior high school supporting 3115 crystal space lattice model crystal model diamond graphite sodium chloride