- Gum phosphoric etch
- Фосфорный раствор гуммиарабика для травления.
Краткий толковый словарь по полиграфии. 2010.
Gum phosphoric etch
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Gum arabic — Gum arabic, a natural gum also called gum acacia, and chaar gund or char goond (in India), is the hardened sap taken from two species of the acacia tree, Acacia senegal and Acacia seyal . It is used primarily in the food industry as a stabilizer … Wikipedia
