... 500ml, made from 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 Flask, ... glassware according to different standards and different specifications. conical beaker (glassware)