Sigillatrice manuale tappo ribaltabile fiala guarnizione laboratorio vetreria bottiglie laboratorio

Chemistry flask Funnel Laboratory organic Weighing bottle glassware beaker. Chemistry Bottle flask 10-1000ml glassware Reaction Schlenk PTFE Tube Laboratory. Flask 14-29# glassware 25-1000ml thick Glass Chemistry 2 Neck Laboratory Boiling.

eBay