Nano Zenk oksid poud ZnO Nanopowder/nanoparticles

Deskripsyon kout:

1.Non: Zenk oksid nano ZnO
2.Purity: 99.9% min
3.Appearacne: poud blan
4.Gwosè patikil: 20nm, 50nm, 500nm, 1um, elatriye
5.Pi bon sèvis