Here's a 1950s clip -- part 2 of 2 -- of a plastics factory in Long Island City, which is located in Queens, New York. 

MS of plastics poured from pots in into molds. Men push carts of molds, and flip switches on big machines. 

Men empty molds by hammering the bottom of each individual mold, some of which shoot out like missiles. 

MW shot of house in suburbia. MS of family at dinner. The father carves a roast using silverware with the marbled handles that were made in the plastics factory.