Tannins and human health: a review. Chung KT, Wong TY, Wei CI, Huang YW, Lin Y. Department of Microbiology and Molecular Cell Sciences, University of Memphis, TN 38152, USA. Tannins (commonly referred to as tannic acid) are water-soluble polyphenols that are present in many plant foods.
How to Cast Jewelry. Jewelry casting is a process of making jewelry pieces that involves the pouring of liquid metal alloy into a mold. It is usually referred to as lost-wax casting because the casting mold is created using a wax model that is melted away to leave a hollow chamber in the middle of the mold.
Enamel Jewelry Designers-Enameling. Enameling is the fusion of a special powdered glass to metals. The glass can be applied using different techniques, but all methods use heat to melt the powder.View designer enamel jewelry and get details about the process used to make it.he glass can be applied using different techniques, but all methods use heat to melt the powder. View designer enamel jewelry and get details about the process used to make it.