Powered by Propane: Gum’s Nemesis, the Super Max 7000

It’s a queasy moment for all city dwellers, when they step into a fresh wad of chewing gum. It’s unpleasant and a hassle to scrape off the sole of your shoe. As for the sidewalk, the gum quickly fuses with the cement and turns black. This is a particular problem outside the Propane.pro headquarters in […]