Hello, dear sirs We are able to supply Rare Earth elements. Now available: 1. Cesium metal isotope 133 Cs-99.9999% 2. Osmium 187 (long-term contract for osmium up 100 kg.)3. Strontium 88 chem Reinheit 98,6%4. Isotope of zinc Zn 665. tungsten 184 WYou may contact with me additional information ...