The "optional accessories" provide additional experiments or variants of experiments, not obligatory.
Equipment and Technical Data
The set contains all optional accessories for TESS advanced Environment & Outdoors (12622-77).
Necessary accessories are needed for the experiments, but are often included in the equipment collections of schools and universities.
The set contains all necessary accessories for TESS advanced Chemistry of Polymers ...
PHYWE presenta la nueva unidad de rayos X: tecnología innovadora, máxima seguridad y comodidad.
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