丰满人妻一区二区三区免费视频-精品人妻系列无码专区-久久精品夜色国产亚洲AV-国产精品无码一区二区在线看

Characteristics: White or almost white crystalline powder
Purity: ≥99%
Melting Point: ≥169℃
Loss on drying: ≤0.5%
Package: 25kg drum
Use: Steroid hormone intermediate