HOWO 8x4 Used Concrete Pump Truck — a cost-efficient 37m 4-section Z boom pump truck combining proven SINOTRUK reliability with genuine low working hours. Key Selling Points 37m Four-Section Z Boom: fast setup and precise placement, ideal for medium-height buildings, workshops and road works. 120m³/h High Output Pump: strong S-valve pumping system with low wear and stable concrete flow. HOWO 8x4 Reliable Chassis: SINOTRUK WD615 engine, global parts network and simple, low