Products Dump Trucks Tractor Units Our tractor units deliver powerful towing capacity, designed for efficiency and durability on long hauls. Special Vehicles Custom-built special vehicles tailored to meet unique industrial and engineering needs with precision. New Energy Our new energy heavy trucks combine green technology with reliable performance for a cleaner future. Special Vehicles High-quality vehicle parts designed to keep your fleet running smoothly and efficiently every day. Gallery A glimpse at our robust range of vehicles and parts. Feedback Zhiyuan Yunka's vehicles have transformed our fleet—reliable, powerful, and impressively green on every journey.