Glass Stopper Hollow Lab Glassware Borosilicate Lab Glass Plug for Chemistry/Science Experiment

Description ADAMAS-Beta Glass Stopper Hollow Lab Glassware Borosilicate Lab Glass Plug for Chemistry/Science Experiment Product: Hollow glass stopper Material: Borosilicate glass Specifications: 14/20, 19/22, 24/40 Features: High-quality borosilicate glass: The glassware made of borosilicate has the characteristics of low expansion rate, high strength, high hardness, high light transmittance, high chemical stability, acid and alkali resistance, high temperature resistance and 200℃ temperature difference.

Exquisite craftsmanship: The glass stopper has a delicate grinding mouth, high processing precision, good sealing and adaptability, and the thickened wall treatment makes the glass stopper durable.