Apparently these new method creates a lot of heat and pressure that lasts a long time.....................
American made. The ZERO HOUR BOMB COMPANY of Tulsa. Now known as Zebco.
http://fishingtackleretailer.com/your-first-fishing-reel-zero-hour-bomb-company/
Seems like adding HEAT to the GROUND would advance (unfounded, ridiculous claims of) GLOBAL WARMING.