Fuzhou Government Procurement Case for Dongfeng Single-Cab Blue-Plate Sewer Cleaning Truck (5 m³): How Did Corrosion Resistance and Durability Prevail? Located on the southeast coast, Fuzhou features a subtropical maritime monsoon climate, with an annual average humidity exceeding 80%, concentrated rainy seasons, and frequent typhoons. For municipal sanitation departments, sewer cleaning trucks are critical equipment for responding to urban flooding, pipe blockages, and other emergencies. In 2025, a subdistrict environmental maintenance unit (hereinafter referred to as 'the Unit') planned to procure a batch of Dongfeng single-cab blue-plate 5 m³ sewer cleaning trucks, with a total budget capped at approximately RMB 336,000 (based on publicly available tender information). Among multiple bidders, Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as 'Chengli') successfully delivered two units, which have already entered service during the peak rainy season. Customer feedback indicates stable operation and low failure rates. This article provides an in-depth analysis of the case from three perspectives: competitor comparison, technical advantages, and procurement decision-making logic. I. Procurement Background and Requirements Analysis The Unit is responsible for routine maintenance and emergency sewer cleaning across approximately 15 km of drainage pipelines within its jurisdiction. Due to Fuzhou’s hot, humid summers, pipeline sludge contains high moisture content and exhibits strong corrosivity; moreover, operational frequency reaches 2–3 times per day during the rainy season. Key procurement requirements were clearly defined: • Vehicle Type: Dongfeng single-cab blue-plate sewer cleaning truck with 5 m³ tank capacity, compliant with C1 driver’s license regulations and unrestricted for urban traffic. • Core Performance: Tank corrosion-resistant coating must withstand high-humidity environments; sealing components must resist both humid-heat aging and chemical corrosion; powertrain must support frequent start-stop cycles and high-load operations. • Budget Control: Unit price target of approximately RMB 98,000–115,000 (per local procurement practice), resulting in a total budget range of RMB 224,000–336,000. II. Major Bidding Suppliers and Comparative Advantages/Disadvantages Three suppliers participated in this tender: Chengli Special Purpose Vehicle Co., Ltd., an Hubei-based special-purpose vehicle manufacturer (referred to as 'Company A'), and a Shandong-based vehicle modification plant (referred to as 'Company B'). Below is a comparative summary (data sourced from MIIT official announcements and on-site field research): Comparison Item | Chengli (CLW5070GSSD6) | Company A | Company B ---|---|---|--- Chassis Brand | Dongfeng OEM | Dongfeng chassis | Foton chassis Tank Material & Corrosion Protection | High-quality carbon steel from Wuhan Iron and Steel Group + electrophoretic anti-corrosion coating + epoxy resin interior lining | Standard carbon steel with exterior-only anti-rust paint | Conventional steel, no interior coating Sealing Component Durability | Imported fluororubber seals, validated for 5,000 hours under humid-heat aging tests | Domestic nitrile rubber seals, moderate heat resistance | Domestic standard rubber seals, prone to premature aging High-Load Performance | Hydraulic transmission + reinforced PTO, supports continuous operation up to 6 hours | Mechanical transmission, poor heat dissipation; prone to overload after 4 hours of continuous operation | Standard transmission, no reinforcement design After-Sales Service | Nationwide Dongfeng chassis warranty + lifetime upper-structure service + spare parts shipped within 24 hours | Chassis warranty only; upper-structure warranty: 2 years | Chassis warranty only; upper-structure warranty: 1 year Delivery Lead Time | 7–15 days | 15–30 days | 20–30 days Reference Price (Tax-Inclusive, Delivered) | ~RMB 105,000/unit | ~RMB 118,000/unit | ~RMB 95,00