All tires use a combination of steel, fabric and rubber to create a sturdy tire. Heavy equipment tires use similar processes, but vulcanize the rubber at higher heats and use more layers of steel and fabric, creating a tire that can withstand substantial pressure and abuse. The rubber still allows a well-placed nail to leave a hole in the tire. Passenger tires do not flex as much being on smooth surfaces, which allow patches to remain in place. Industrial tires only require a plug due to the flexing of the rubber
