Okwangoku, umgangatho wesizwe waseTshayina we-silicon calcium 3058 umgangatho wexabiso eliphambili lokuthumela ngaphandle kwi-FOB 1480-1530 yeedola zase-US / toni, ukuya kuma-30 eedola zase-US / toni.NgoJulayi, i-8 / 11 i-arc furnaces kwimarike ukuvelisa i-silicon calcium, i-3 ibilungiswa.Unciphiso oluhambelanayo lwemveliso, ngelixa i-d...
Funda ngokugqithisileyo