Slove the problem of WP[&-(]s(tungsten metal powder)granularity distributing, to make the WP[&-(]s granularity more identical, distribute more eqiually, and apply more widely.

• 解决钨粉的粒度分布问题，生产出来的钨粉粒度更趋一致，分布更均匀，适应性更广。