... % 2)Manufacturer with big capacity 3)High quality&competitive price 4)Prompt delivery 5)Sample is available 1)Model: ... manufacturer with capacity of 150,000tons annually3)High quality,Competitive price, Good service4)Prompt delivery, normally in 10 days after ... . The recommended dosage is 5-30%. Technical data: ItemAppearanceActive matter, %Ammonium sulfate, %Unsulfated matter, % Color, Hazen (5% a. m.) ...