... for resin & adhesive enterprises. Our products include melamine, urea, sodium chloride, ammonium chloride, hexamine, etc.Our advantages: ... payment terms, including LC, DP and OA. Fifthly,Quality Control and professional logistics service.We are devoted to ... GB/T 2440-2001 ITEMSTANDARDAppearancewhite particleNitrogen % ≥ 46.4Biuret % ≤ 0.9Moisture % ≤ 0.5Particle size(φ0.85-2.80mm) % ≥ 93 urea 46%