Corning Pyrex 8084-15 Glass Conical Cylindrical 15mL Centrifuge Tube with White Graduations and Standard Taper Pennyhead Stopper (Pack of 12): Science Lab High Speed Centrifuge Tubes: Amazon.com: Industrial & Scientific
Penny Treuepunkte Pyrex, 1 volles Heft in 68309 Mannheim für 3,00 € zum Verkauf | Shpock DE
Corning Pyrex Ground Glass Penny Head Standard Taper Stopper, No. 27 (Case of 6): Science Lab Stoppers: Amazon.com: Industrial & Scientific