... glass is heated to 1100 degrees Celsius, placed in warm water and it will not be broken. 4, good performance of ... of specifications ) quartz glass ware ( quartz beaker, tube, evaporating dish, reagent bottles, quartz crucible ), quartz glass, quartz tube cutting, burning mouth ... , sealing, scrub, and other special-shaped processing boiler water level quartz tube(OD4mm to 400mm)