... B: Tungsten Series, contain tungsten rod, tungsten wire, tungsten bar, tungsten plate, tungsten sheet,tungsten screw/nut/bolt, tumgsten box,tungsten special-shape ... turning machineSurface quality/ roughness and density6Package Quality Test Report Tungsten Podwer → Isostatic Pressing → Plate Slab →Sinering → ... of the refractory metal in China, and have obtained the China Credit Certificate in 2007.With ...