Shenzhen Qun Long Instrument Equipment Co, Itd devotes itself to researches, developments, productions and sales of various kinds of electronic density testing instruments, including MAYZUM moisture testing apparatus, electronic density tester, rubber densimeter, plastic density meter, density balance, electronic specific gravity balance, ceramic density tester, powder metallurgy density tester, magnetic material density tester, wood density tester, rock and mineral density tester, viscometer, hardness tester, thickness tester, hall flow meter, powder bulk density tester, powder tap density tester, XRF spectrometer, on line liquid monitor tester etc. With rich experience in specific gravity, density and spectrometer for 11 years, the company has been equipped with new understanding of specific gravity and density testing methods for all kinds of material and commercialized them. With China as a base point, it is in an attempt to provide services to the whole world.

By now, products of the company have been widely applied to powder metallurgy, fine ceramics, magnetic materials, rubber, plastic, electric wires, cables, precious metal, processing and manufacturing detections as well as vast scientific research and experiment. They are highly affirmed and praised by majority of users.

The company adheres to operation principles of "keeping a foothold in the world with integrity and leading the future with quality" and spares no efforts o provide customers with the most superior and professional instrument and equipment solutions. Professional measurements of: Moisture, specific gravity, volume, porosity, expansion rate, oil concentration and water absorption. Applicable materials: Solid, liquid, powder.