Xiamen Qunlong Instrument Co., Ltd. main provide hydrometer (hydrometer), electronic balance (weight balance), jewelry testing equipment (precious metal purity tester), measuring instruments. The company products have been widely used in metallurgy, precision ceramics, magnetic materials, rubber and plastic, wire and cable, testing, and other precious metals manufacturing units and the majority of scientific experiments, and the majority of users the full recognition and praise. Companies adhering to the "customer first, forge ahead" business philosophy, the "customers first" principle to provide our clients with quality service, welcome to inquire!