Aluminum hiding depends on the surface area of ??large and small, that is aspect ratio. Aluminum was extended during the grinding process, Yiwu wholesale silver, diameter and thickness increasing Yiwu wholesale silver Which, hiding also will increase. Since silver particles differ in shape, density and the amount of charge with respect and the powder will cause separation and the impact on the powder. Using bonding techniques for bonding the powder and silver, the powder and the effect of greatly improved.