Question: What type of steel was used in mid–20th century developments and was a Raphael S. Soriano specialty?
Sentence (from "Raphael Soriano"): Raphael S. Soriano, FAIA, (August 1, 1904 – July 21, 1988) was an architect and educator, who helped define a period of 20th-century architecture that came to be known as Mid-century modern.
Relevant evidence: No