Professional classification of laboratory glassware used in quality control and research & development departments of manufacturing industries. Includes precision glass laboratory instruments such as beakers, flasks, test tubes, measuring cylinders, pipettes, burettes, separatory funnels, and distillation apparatus. Used for liquid measurement, mixing, separation, and heating processes in material analysis, chemical reaction testing, solution preparation, and quality inspection. Primarily consists of borosilicate glass products with excellent heat and chemical resistance, featuring laboratory-specific instruments with strictly regulated volume accuracy and temperature tolerance. High-precision analytical glassware products distinguished from general industrial containers and measuring instruments.