1,Tungsten, Tungsten wire, black tungsten wire 2,W1,W2,WAL1,WAL2 3,Super quality and competitive price 4,Purity>=99.95% Black Tungsten Wire With high purity APT materials,the tungsten wire made by advanced technology. Black tungsten wire is featured with minimum formation at high temperature, high recrystallization temperature, uniformity in dimension and excellent coil ability.Applications of ...