MAY 2007
ASHI Reporter May 2007, Feature

Safety Glazing

Glass in some form or another has been used since the dawn of civilization. It appears naturally as obsidian, and the first man-made glass objects date from 3500 B.C. The Romans used a semi-clear glass in windows beginning around 100 B.C., and little progress was made in glazing technology for the next 1,200 years.

By: Douglas Hansen read full article
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