Helium-3 is a gas with unique physical and chemical properties and is one of the most expensive isotopic gases. Shanglan Gas directly imports He-3 from Russia, which can only meet the needs of a limited number of domestic research clients in fields such as ultra-low temperature applications, hyperpolarization, or neutron detection. Helium-3 is also considered a future direction for clean energy. The current challenge is to achieve the technical feasibility of controlled nuclear fusion. Helium-3 Specifications: Component | Specification Chemical Purity | 99.999% Abundance | 99.9%+ Nitrogen | 6 ppm Oxygen + Argon | 1 ppm Carbon Monoxide | 1 ppm Hydrogen | 2.4 ppm Hydrocarbons | 1 ppm Tritium, Volumetric Activity (Ci/L) | 5.4×10?11 Tritium, Atomic Fraction | 4.2×10?12 Packaging: (1) 300ml aluminum cylinder - CGA580 valve (2) Stainless steel cylinder: 150ml, 300ml, 500ml, etc., with 1/4-inch female NPT valve.