Melamine, Urea, Sodium Nitrite manufacturer / supplier in China, offering Urea-Formaldehyde Resin Gum for Laminates, Ammonium Polyphosphate Ecofire APP Halogen-Free Flame Retardant Powder for Plastics & Coatings, Ammonium Sulfate (CAS 7783-20-2) Fertilizer & Industrial Grade 25kg Bag (Agricultural Ammonium Sulfate Fertilizer) and so on.