Aztec is a family-owned USA manufacturer of concrete and terrazzo floor polishing & resurfacing machines, and a converter of gasoline engines to LPG for other equipment manufacturers. Don't work hard, WorkSmartTM with the Aztec Floor Systems for VCT, terrazzo and concrete floors. The WorkSmart Sidewinder Stripping System, and the new multi-purpose REFRESHER, for stripping/deep scrubbing VCT floors, plus honing, polishing, burnishing concrete and terrazzo floors. MADE IN THE USA; EPA, CARB, LEED, GS-42 certified. Propane powered equipment by the PurePower by Aztec 600 Series engine. Aztec’s propane engines have with the LOWEST EMISSIONS IN THE INDUSTRY. All Aztec propane equipment and engine conversions are proudly made in the USA, with CE, EPA, CARB, LEED and GS-42 certifications. Optional engine meeting Blue Sky standards.