• <progress id="47fdn"><track id="47fdn"></track></progress>

    <rp id="47fdn"><object id="47fdn"><input id="47fdn"></input></object></rp>

    Gum Tragacanth

    A gummy, water-soluble substance exuded by several species of Asian shrub of the genus Astragalus (in particular A. gummifer') used as a stiffening agent in pills, throat lozenges, and other such applications. It is also used as a binder in water-vehicle solutions, such as those used to make screen printing stencil emulsions.

    All text and images are licensed under a Creative Commons License
    permitting sharing and adaptation with attribution. (See Copyrights for details.)

    PrintWiki – the Free Encyclopedia of Print
    About    Hosted by WhatTheyThink


    可打现金的麻将平台