潘金莲被吸乳揉到高潮的视频,久久99久久99精品免观看,在电影院里拨开内裤挺进,护士交换粗吟配乱大交动态图

Package: 25kg/barrel，according to your request.

Uses : Side chains of semi-synthetic beta-lactamide antibiotics;used as a drug triazolan intermediate

Molecular Structure:

Product description:

　　Properties:?Colorless liquid (at low temperature as colorless solid)

　　melting point：23-25?°C(lit.),

　　boiling point：203?°C752?mm Hg(lit.)

　　density:1.192?g/mL?at 25?°C(lit.)

　　refractive index::n20/D?1.498(lit.)

　　flash(ing) point :225?°F

　　water soluble properties:soluble