... can produce high quality tungsten and its alloy(W-Cu, W-Ni, W-Ni-Fe, W-Ni-Cu, W-Mo ) plate, sheet, foil, strip, ribbon, tape, rod ... are available as W1, W2, WAL1, WAL2, WAL3, CW1, W-Cu alloy (W:Cu 90:10, 85:15, 80:20, 75:25, 70:30 ... ).The essentials of tungsten: Symbol W Atomic number 74 Atomic weight ...