Jinan National VI Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle Government Procurement Case: Emergency Replenishment Purchase and Bid-winning Solution Interpretation. In the municipal sanitation sector, sudden sewage discharge issues often require rapid response. In early 2026, a district in Jinan experienced temporary sewage accumulation due to pipeline renovation, prompting a municipal sanitation department to urgently initiate procurement procedures for a batch of National VI Dongfeng 3308 mm wheelbase sewage treatment vehicles. This article uses this real-world case as background to interpret the entire process—from initial demand identification to Chengli Special Purpose Vehicle’s delivery—and analyzes the core elements of the winning bid solution. I. Emergency Demand Background: Pipeline Renovation-Induced Urgent Sewage Disposal Pressure In January 2026, a district in Jinan launched an aging pipeline renovation project, resulting in temporary interruption of sewage discharge systems in certain areas. With increased winter water consumption, multiple residential communities faced risks of sewage backflow. The municipal sanitation department received instructions from higher authorities to complete procurement and commissioning of a batch of sewage treatment vehicles within 15 days. Based on on-site surveys, the required daily sewage treatment capacity was approximately 300 cubic meters, with simultaneous requirements for mobility and continuous operation capability. Previously, the department had used vacuum suction trucks (e.g., CLW5070GSSD6 model, 3 m³ capacity); however, such trucks are better suited for fixed-point suction, whereas this requirement emphasized mobile treatment—prompting a shift toward dedicated sewage treatment vehicles. II. Emergency Tender Process: Budget Control and Time Constraints Given the tight timeline, the procurement department adopted a hybrid approach combining 'emergency procurement' and 'open tender'. Per local procurement practice, the total budget was capped at approximately RMB 1.668 million, with plans to procure three sewage treatment vehicles at an estimated unit price of around RMB 500,000 (based on publicly available tender information). The tender documents explicitly stipulated the following requirements: vehicle chassis must comply with National VI emission standards; wheelbase ≥ 3308 mm; upper structure must incorporate sewage separation, solid waste compaction/packaging, and liquid purification functions; and full delivery must be completed within 10 days after contract signing. Suppliers were required to provide complete MIIT (Ministry of Industry and Information Technology) announcement parameters and guarantee nationwide registration eligibility and annual inspection compliance for the vehicles. Ultimately, Chengli Special Purpose Vehicle Co., Ltd. secured the bid, leveraging its CLW-series sewage treatment vehicles (built upon Dongfeng 3308 mm wheelbase chassis), compliant MIIT announcements, and proven rapid-delivery capability. Publicly available information indicates that Chengli manufactures locally in Suizhou, where standard models typically achieve delivery within 7–15 days—fully satisfying the 10-day deadline. III. Chengli’s Rapid Response and Delivery: From Order Placement to Shipment in Just 9 Days On January 18, 2026, the procurement contract was signed. Chengli Special Purpose Vehicle immediately initiated production scheduling, utilizing pre-stocked Dongfeng National VI 3308 mm wheelbase chassis from its Suizhou factory for upper-structure modification. According to MIIT announcements (e.g., parameters for models such as CLW5070GSSD6), the sewage treatment vehicle’s upper structure comprises modules including a pretreatment tank, filtration system, and pump unit. Chengli employed modular pre-assembly techniques to significantly reduce assembly time. By January 27, all three vehicles had passed quality inspection and were loaded for shipment—achieving