5pcs 100mm Pyrex Glass Blowing Tubes Wall Test Tube

5pcs 100mm Pyrex Glass Blowing Tubes Wall Test Tube Specification: Material: Pyrex Glass Outside diameter:10mm Inside diameter:8mm Length :100mm Thick Wall:1mm Feature: Durable in use. Fire polished ends on Both Sides. Used as the reaction vessel in a small amount of reagent and used in room temperature or heat. The Pyrex Glass has low thermal expansion coefficient that is about a third of ordinary glass. Resistant to high temperatures(About up to 200 degrees) Package Includes : 5pcs x Tubes