Molecular formula :
nature : refers to the polyvinyl chloride and cinnamon for raw materials, manufactured by esterification PVA cinnamate. Light, PVA Cinnamates can happen crosslinking reaction. Using its nature, in 1959 the United States began to cinnamon polyvinyl ester used in the manufacture of printed circuit boards, as well photoresist to use it. PVA Cinnamates photoresist used as a general rule, but also by adding a small amount of sense to me for Robo.
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