GD-0621 Asphalt Standard Viscometer

GD-2801F Low-Temperature Penetrometer

GD-0615 Wax Content Tester

GD-0613A Automatic Fraass Breaking Point Tester

GD-0610 Asphalt Rolling Thin Film Oven

GD-0609 Asphalt Thin Film Oven

GD-2801E Penetrometer

PAV-1 Asphalt Pressure Aging Vessel System

WNE-1B Engler Viscometer

GD-0620B Bitumen Dynamic Viscometer