طلبات رخاميات و معادن / السودان

i need financial and technical offer for 20 MT perlite with the following specifications: 1- Appearance White or offwhite 2 -Bulk density 45～65 3 -Particle distribution 90% 20 -80 mesh 4 -Hydrophobicity ≥ 200 5 -Water content ≤1%