Ruvara jecha ruvara sanding silica yevana vari kutamba
Jecha rine ruvara rakakamurwa kuita jecha rine mavara echisikigo, jecha rine ruvara rwe sintered, uye jecha rine ruvara rwakadhayiwa.Hunhu hwayo ndeiyi: mavara akajeka, asidhi uye alkali kuramba, UV kuramba, uye hapana kupera.
Rudzi: jecha remavara echisikigo, jecha rine ruvara.
saizi: 10-20.20-40.40-80.80-120.120-180.200mesh.
Nyora meseji yako pano uye titumire kwatiri