Laboratory consumables and basic instruments for experimental and analytical use in research and development departments, quality control departments, and analytical laboratories. Includes glassware such as test tubes, beakers, flasks, pipettes, and petri dishes, plastic instruments, laboratory reagents, filters, pH test strips, standard solutions, and other consumables. Covers disposable supplies and reusable basic instruments necessary for quality inspection in manufacturing processes, material analysis, and basic experiments in product development. Excludes high-precision analytical instruments and large-scale experimental equipment.