... are professional Chinese manufacturer of laboratory glassware, includes: beaker, flask, funnel, bottle, Boiling Flask,Conical Flask,Distilling Flask, evaporating dish, Crysallizing Dish, Watch Glass , Petri ... , Separatory Funnel, Measuring Cylinder, Volumetric Flask.we can mold and produce all of laboratory glassware according to different standards and different specifications. flask (glassware)