... molybdenum wire ,and other molybdenum alloy products .2.Tungsten Series : tungsten boat ,tungsten wire ,tungsten filament ,tungsten ... and so on3.Tantalum series : tantalum sheet ,tantalm strip ,.tantalum alloy foil .and othes .4.Niobium series : Nb seamlesstube ... ,and others5. Titanium series : titanium sheet ,titanium rod ,titanium ...