欧美人与动性视频在线观_亚洲美女自偷自拍12p_亚洲综合色区无码一区偷拍_人人狠狠久久亚洲区

Characteristics: White or almost white crystalline powder
Purity: ≥98%
Melting Point: 137-140℃
Loss on drying: ≤0.5%
Package: 25kg drum
Use: Steroid hormone intermediate