Chemical experiment watch glass:high transparency design, easy to observe experimental results, simple and convenient to use the watch glasses,school laboratory watch glass
Laboratory round watch glass:transparent design, round shape, slightly concave in the middle, sturdy, not easy to deform,watch glass for laboratory
Experiment watch glasses tool:it is simple in design, but practical to use, which will give you fantastic use experience,teaching tool watch glass
Laboratory transparent watch glass:the watch glass is professional and excellent, can let the fluid surface area increased, evaporation, save time,heat-resistant watch glass
Laboratory experiment watch glass:multi-functional application, it can be used as evaporating dish, also as beaker cover, or as loading carrier,watch glass for evaporating