Fertilizer Ammonium Sulphate Caprolactam Grade 21% N Steel Grade 20.5% N Chemical Formula CH42SO4 Appearance White or Yellow Granular Size 0-4mm 90% Caprolactam, 2-5mm 90% Steel Package 10kg 25kg 50kg /Jumbo bag. Customized package is available. Capatity 26MT 20GP