Quantity: from 5000 MT to 15000 MT per month Price: $640 per ton (big bag) Delivery terms: CIF port Payment terms: partial prepayment or letter of credit The mass fraction of nitrogen in terms of dry matter is not less than 46.3% (A premium), 46.2% (A first grade), 46.2% (B premium), 46.2% (B first grade), 46.2% (B second grade) The mass fraction of biuret is not more than 0.6% (A premium), 1.4% (A first grade), 1.4% (B premium), 1.4% (B first grade), 1.4% ( B second grade) Mass fraction of ammonia for carbamide: crystalline not more than 0.01% (A premium), 0.01% (A first grade) prilled no more than 0.02% (A premium), 0.03% (A first grade) Mass fraction of water: drying method not more than 0.3% (A premium), 0.3% (A first grade), 0.3% (B premium), 0.3% (B first grade), 0.3% (B second grade) Fisher method not more than 0.6% (A premium), 0.6% (A first grade), 0.5% (B premium), 0.5% (B first grade), 0.6% (B second grade) Friability: 100% (B premium), 100% (B first grade), 100% (B second grade) Grading: mass fraction of granules with the following sizes 1-4 mm not less than 94% (B premium), 94% (B first grade), 94% (B second grade) 2-4 mm not less than 70% (B premium), 50% (B first grade)