1,Quality Standard :Food-grade 2,Source:deep-sea Gadous skin 3,Mol. Wt:2200Da 4, ... -GradeBatch No.111117A2D Mol. Wt:2200Da Hydroxyproline content: about 6.2%Package:20kg,or As customer's requirement.Guarantee Period:24 ... fish smellimpuritywithout external material with eyesportein%≥90 moisture,% ≤10 ash,% ≤2 arsenic(as inorganic As),mg/kg ≤0.5 lead(as ...