... :0.1mm+Purity: 99.95%ISO9001: 2000Hlmet CO.,LTD holds Tantalum ,Niobium as the dominant products in the scope of rare metal ... , sheet, tube, wire ,rod ,crucible , target ,alloy and so on. Tantalum features high melting point , low vapor pressure , good cold processability ... , aerospace and aviation. We can produce all kinds of tantalum alloy rods,such as Ta2.5W,Ta10W,Ta40Nb,size: 3.0mm up ...