Jecha rine mavara akawanda jecha rine mavara akareruka jecha dema rekupenda matombo chaiwo
Jecha rine ruvara rwakakamurwa kuita jecha rine ruvara rwechisikigo, jecha rine ruvara rwakatsvuka, uye jecha rine ruvara rwakadhayiwa. Hunhu hwaro ndehwekuti: mavara akajeka, kuramba acid nealkali, kuramba UV, uye kusapera.
Rudzi: jecha reruvara rwechisikigo, jecha rine ruvara.
saizi: 10-20.20-40.40-80.80-120.120-180.200mesh.
Nyora meseji yako pano woitumira kwatiri
