Lehr (glassmaking) - WikipediaA lehr is a temperature-controlled kiln for annealing objects made of glass. The name derives from the German verb lehren meaning to teach. Rapid cooling of.lehr machine operation,LEHR – Life Energy for the Human Race | An Environmentally .HOME; LEHR MARINE . LEHR on Jay Leno's Garage . far less pollution and is more convenient than the two stroke gas and oil machines it can replace. We're.
lehr machine operation