Spherical cast tungsten carbide powder Phildal tungsten co., limited is becoming a significant tungsten material supplier and exporter. Character: the microstructure of spherical cast tungsten carbide is homogeneous, dense and featherlike structure, and spherical cast tungsten carbide has stable chemical properties, good processing performance high hardness, good Applications: widely used for exploiting drill bits, pdc drill toos, melting and penetrating spray coating and piled-up welding on wear surface. Iron drums