性色蜜月av一区二区三区,欧美剧,18一20女一片毛片,在公车被弄到高潮自述

Molecular formula:

C₉H₄O₅

Structural formula:

CAS No.:

552-30-7

Properties:

Appearance: white flake or pastill solid. 

Density(20℃):1.54g/cm³

Advantages:no pungent odor,no dust,non-adhesion group,and good mobility.

Solubility:soluble in hot water,acetone,dimethyl formamide,and cyclohexanone.

Applications:

Used for PI(Polyimide) resin for film-grade and high-performance fiber resin.

Packaging::

25kg paper composite bags, 500kg or 1000kg interior woven bags.

Quality index: