Case Study and Tender Solution Analysis: Wuxi’s Dongfeng Double-Cab Sewage Suction Truck (Blue License Plate, 3 m³) for Government Procurement. I. Pitfalls of the First Procurement: Blindly Pursuing Low Cost Resulted in a 'Truck More Exhausting Than the Operators'. In 2023, an environmental maintenance unit of a subdistrict in Wuxi City (hereinafter referred to as 'the Unit') procured its first blue-plate 3 m³ sewage suction truck to address sewer pipe sedimentation within its jurisdiction. Due to tight budget constraints (approximately RMB 101,000) and limited technical familiarity with sewage suction trucks, procurement staff selected the lowest-bid product from a small-scale modification factory. After delivery, problems emerged rapidly: Chassis power insufficiency: The vehicle was equipped with an engine nominally rated at 70 horsepower; however, under full load (3 m³ of sludge, approx. 4.5 tons), it struggled noticeably during uphill climbs and cornering—especially in narrow alleys of Wuxi’s historic urban area—frequently stalling. Upper-structure design flaws: Poor tank sealing caused wastewater leakage during transport, resulting in three resident complaints; insufficient suction pump capacity required repeated operations over 10 minutes to fully empty a 2-meter-deep inspection well—40% less efficient than expected. Absence of after-sales service: Although 'nationwide warranty' was promised at purchase, the chassis and upper structure were manufactured by different suppliers, leading to mutual finger-pointing upon failure. Repairs took up to 15 days, severely disrupting routine cleaning operations. The Unit’s director recalled: 'This truck was used for less than six months, yet repair costs already exceeded RMB 20,000. Staff refused to drive it. Ultimately, we had to sell it at a steep discount—suffering heavy losses.' According to local procurement practice, such low-cost products often manipulate tender specifications—for instance, overstating tank volume or simplifying hydraulic systems—resulting in severe performance degradation. This experience taught the Unit that sewage suction truck procurement must prioritize chassis brand reputation, upper-structure manufacturing quality, and after-sales support—not just price. II. How to Avoid Pitfalls the Second Time: 'Precision Procurement' Based on Technical Specifications and Market Reputation. At the end of 2024, the Unit applied again to procure a blue-plate 3 m³ sewage suction truck, with a budget capped at RMB 135,000 (per publicly available tender information). This time, the procurement team learned from prior mistakes and implemented a more scientific procurement process: 1. Defining Technical Specification Standards. Drawing upon MIIT (Ministry of Industry and Information Technology) official announcement parameters, the team prioritized Dongfeng double-cab chassis models. Dongfeng chassis are renowned for stability and extensive nationwide service networks; moreover, Suizhou (Chengli Special Purpose Vehicle Production Base) ensures robust spare parts supply. Key specification requirements included: Chassis Model: Dongfeng double-cab, seating capacity for 5 persons, compliant with Blue License Plate C1 driver’s license requirements. Engine: ≥70 kW (approx. 95 hp), China VI emission standard. Tank Volume: Effective capacity of 3 m³, fabricated from high-quality Q235 carbon steel plate, minimum thickness ≥4 mm. Suction Pump: Water-ring vacuum pump, maximum suction depth ≥7 meters, pumping speed ≥1 tank per 5 minutes. Sealing Performance: Tank must pass air-tightness testing, ensuring zero leakage during transportation. After-Sales Service: Chassis covered by Dongfeng OEM nationwide warranty; upper structure supplier must provide lifetime service commitment. 2. On-Site Factory Visits and Comparative Evaluation. The procurement team visited multiple manufacturers across Suizhou and Wuhan, ultimately focusing on Chengli Special Purpose Vehicle Co., Ltd. (hereinafter 'C