A comprehensive national high-technology enterprise specialized in research and development, design, production, marketing, maintenance, leasing, consulting and leak detection, the main products of which are helium mass spectrometers, hydro-cool helium helium spectrometers, automated vacuum box helium detection leaks, helium gas recovery purification systems, power cell high temperature resistant pressure testers, battery laminate bursters, blade battery helium spectrometers, high voltage discharge filters, etc。