Complex sentence: Titanine, Incorporated (Union City, New Jersey) was a subsiduary company opened in the United States to serve the american aircaft industry, other plants were opened in Italy and Germany in the years before the Second World War.
Split into simpler sentences: Titanine, Incorporated (Union City, New Jersey) was a subsidiary company opened in the United States to serve the American aircraft industry. Other plants were opened in Italy and Germany in the years before the Second World War.