Industrial grade white powder zinc oxide 50% 1.Certificate:ISO9001 2.Nanometer level 3.Support any payment and freight ways Industrial grade white powder zinc oxide 50%1>Description Zinc oxide is a white or light yellow powder. The average particle size of about 30 nm, particle size in the range of nanometer 10-40, with fine grain size, large specific surface area, easy to disperse, not damp, ...