About Us We, Quality Engineers, are well known as a reputed manufacturer and exporter of a comprehensive range of world class Road Construction Equipment. Our offering comprises Asphalt Batch Mix Plant, Asphalt Hot Mix Plant, Asphalt Drum Mix Plant, Asphalt Drum Hot Mix Plant, Wet Mix Macadam Plant, Asphalt Paver Finisher, Wet Mix Paver Finisher, Bitumen Sprayer / Distributor, and Road Cleaning Equipment.