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