Tungsten and its alloys Material dimension (mm) and standard of tungsten and tungsten alloys Alloy:W1, CW1, W2, WAl1, WAl2, WAl3,WCe15, WTh7, WTh15,WL10,W-Ni-Fe,W-Ni-Cu Reference Standards: CB4181-84, GB4191-84, GB4187-84, GB4186-84, GB4189-84 For example: W sheet, W cake ,W alloy bar, W boat, W alloy balls, W-NI-Cu, W-NI-Cu parts