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: 170kg/drum

Uses : Pharmaceutical intermediates, organic solvents, are also used in dye production and other organic synthesis.

Molecular Structure:

Product description:

　　Properties:? ? Appearance：Colorless to light yellow liquid.

　　Boiling point: 184-186℃,

　　relative density 0.9360 (20/4℃),

　　refractive index：1.5210.

　　Flash point 77℃,

　　soluble in organic solvents. It has a benzylamine stink.

　　Specification:? Assay≥99%??? Moisture < 0.3

　　color < 50APHA