... borosilicate glass. Reinforced rim. Accuracy: 5% conical beaker-----we are one of the leading and professional manufacturers of ... laboratory glassware in Shenzhen, China.Our lab glassware includes: beaker, flask, funnel, bottle, Boiling Flask,Conical Flask,Distilling ... , specimen bottle conical form, Droping Funnel, Separatory Funnel, Measuring Cylinder, Volumetric Flask.we can mold and produce all of ...