男人撕开奶罩揉吮奶头视频,精品影院,毛片无码国产,美女视频黄频a美女大全免费下,久久无码人妻精品一区二区三区

Appearance White crystals powder Melting point 142~148°C Specific rotation -126°±5° Iron(Fe) Not more than 10ppm Loss on Drying Not more than 0.50% Ammonium (NH4) Not more than 0.02% Sulfate (SO4) Not more than 0.030% Heavy metal(Pb) Not more than 10ppm Arsenic(As2O3) Not more than 1ppm Assay Not less than 98.5% PH 1.50-2.50