Ultrafine copper isotope powders chemical purity of at least 99.9999% Copper isotope ingots wchemical purity of at least 99.9999% Nickel RNT 0.025 KT NP 1 and DKRNT 0.025 KT NP2 Selenium powder chemical purity 99.985% Aluminum powder chemical purity 98% Zinc powder hemical purity 99.998% Various types of ferroalloys, etc. All products for sale. For further information write or