387-01401
Stacked layers of graphene,  single one-atom thick sheets...
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387-01401
Stacked layers of graphene, single one-atom thick sheets...
035-01086
SNOWFLAKE ICE CRYSTAL
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035-01086
SNOWFLAKE ICE CRYSTAL
035-01085
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035-01085
SNOWFLAKE ICE CRYSTAL ASYMMETRIC ARMS HEXAGON
035-01087
SNOWFLAKE ICE CRYSTAL HEXAGON ARMS STRUCTURE
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035-01087
SNOWFLAKE ICE CRYSTAL HEXAGON ARMS STRUCTURE
035-01088
SNOWFLAKE ICE CRYSTAL HEXAGON ARMS STRUCTURE
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035-01088
SNOWFLAKE ICE CRYSTAL HEXAGON ARMS STRUCTURE
087-01431
HEXAGON six sided figure GEOMETRIC SHAPE
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087-01431
HEXAGON six sided figure GEOMETRIC SHAPE