The pen components are fired in a furnace at temperatures exceeding 1,000° F, fusing the enamel to the metal and forming a layer of glass.

DEERFIELD BEACH, FL--(Marketwired - Sep 3, 2014) - PEN Inc. (OTCQB: PENC) (PEN) today announced that, effective immediately, the company will trade on the OTCQB exchange under the trading symbol ...