'In 1938 Roy Plunkett stuck with it & discovered this non-stick substance'
teflon
TECHIES: In 1938 Roy Plunkett stuck with it & discovered this non-stick substance
In 1938 Roy Plunkett stuck with it & discovered this non-stick substance
In 1938 Roy Plunkett stuck with it & discovered this non-stick substance
TECHIES
teflon
TECHIES