10Pcs 100 mm Pyrex Glass Blowing Tubes 4 Inch Long Thick Wall Test Tube AU M&E

ITEM NAME:10Pcs 100 mm Pyrex Glass Blowing Tubes 4 Inch Long Thick Wall Test Tube AU M&E.The Pyrex Glass has low thermal expansion coefficient that is about a third of ordinary glass. Used as the reaction vessel in a small amount of reagent and used in room temperature or heat. 10 x Tubes.