The document provides specifications for three types of firefighting trucks produced by Youngsan: 1. A chemical firefighting truck with a 4,000L water tank and 400L foam tank 2. A pump firefighting truck with a 4,300L water tank and 200L foam tank 3. A water tank firefighting truck with a 6,000L water tank It lists details like the chassis, transmission, dimensions, water tanks, fire pumps, and other equipment for each vehicle type. Photos show the front, sides and rear of each truck model.