Profile: Donald Engineering and Design Ltd. specializes in fabricated equipment and components, food factory equipment, highways, machinery and plant design & build. We also offer an installation service. We manufacture a large range of road-marking & bridge work equipment including material heaters, bead guns, heating lances, spray heads, auger systems, power-packs, and lining shoes. Our material heaters are built to a high standard using boiler plate for durability, and are designed for heating lining plastic, anti-skid material, pitch & resin materials. We use diesel burners in our material heater which ensure economical and safe operation.