... Description Baoji Zhong Bang rare metal materials CO.,LTD holds Tantalum ,Niobium as the dominant products in the scope of rare ... their metals, sheet, tube, wire ,rod ,crucible , target ,alloy and so on.Tantalum features high melting point , low vapor pressure , good cold ... , aerospace and aviation. We can produce all kinds of tantalum alloy rods,such as Ta2.5W,Ta10W,Ta40Nb,size: 3.0mm up ...