Trademark W1, W2, WAL1, WAL2 ,W-Ni-Fe, WMO50, WMO20 Dimension (1. ... *(20~400)*L mm ASTMB760 Trademark – W1, W2, WAL1, WAL2 ,W-Ni-Fe, WMO50, WMO2 Tungsten plate mainly used for electronic semiconductor ... )*L mm Specification – GB3875-83 ASTMB760-86 ASTMB777-87 ASTMB760 W1 tungsten plate and its alloy plate