Case Study and Bid Winning Solution Analysis of the Xuzhou Dongfeng Single-Cab Sewer Cleaning Truck (Blue License Plate, 5 m³) for Government Procurement In municipal sanitation, sewer cleaning truck procurement is a critical component of urban drainage system maintenance. In early 2025, a municipal sanitation department in Xuzhou planned to procure a batch of Dongfeng single-cab blue license plate 5 m³ sewer cleaning trucks, with a budget of approximately RMB 171,000–206,000 per unit (based on local public tender information). Due to their C1 driver’s license compatibility, high maneuverability in urban traffic, and efficient cleaning performance, such vehicles have become the top choice for small- and medium-sized municipal units. This article uses this case as an entry point to comprehensively interpret the end-to-end process—from tender announcement verification to solution implementation. I. Procurement Background and Requirements Analysis The municipal sanitation department is responsible for maintaining the drainage network across approximately 50 km². Its existing sewer cleaning equipment is outdated, necessitating the procurement of five new blue license plate sewer cleaning trucks. Key procurement requirements included: Dongfeng single-cab chassis, China VI emission standard compliance, tank capacity of 5 m³, and integrated high-pressure cleaning and vacuum suction functionality. During the tender process, suppliers were required to submit official documentation including the MIIT (Ministry of Industry and Information Technology) vehicle announcement, chassis certificate of conformity, and upfit consistency certificate. As a leading Chinese special-purpose vehicle manufacturer, Chengli Special Purpose Vehicle Co., Ltd. emerged as a key candidate solution, leveraging fully announced models such as the CLW5070GSSD6. Key Note: A 5 m³ blue license plate sewer cleaning truck operable with a C1 driver’s license must have a gross vehicle weight rating (GVWR) not exceeding 4,500 kg and an overall length under 6 meters. The MIIT announcement must explicitly classify the vehicle as a 'sewer cleaning truck' or 'cleaning & vacuum suction truck'; otherwise, normal registration and annual inspection will not be possible. II. MIIT Announcement Verification Procedure and Risks of Fraudulent Announcements 2.1 Four-Step Announcement Verification Process To verify regulatory compliance, procuring entities must follow this procedure: • Visit the MIIT official website: Access the 'Announcement System for Road Motor Vehicle Manufacturers and Products', and search using either the enterprise name (e.g., 'Chengli Special Purpose Vehicle Co., Ltd.') or the vehicle model (e.g., 'CLW5070GSSD6'). • Verify announcement batch validity: Confirm that the vehicle model falls within its effective announcement period (typically three years). Chengli’s sewer cleaning truck announcements are distributed across batches #340 to #370, supporting real-time online verification. • Cross-check parameter consistency: All parameters listed in the announcement—including overall dimensions, wheelbase, engine model, emission standard, and tank capacity—must exactly match those of the physical vehicle. For example, the CLW5070GSSD6 announcement specifies an effective tank volume of 5.0 m³; unauthorized modifications are strictly prohibited. • Obtain separate chassis announcement: The Dongfeng single-cab chassis must carry its own independent chassis announcement (e.g., Dongfeng EQ1075SJ3CDF), ensuring full compatibility between chassis and upfit. 2.2 Warning Cases of Fraudulent Announcements In past procurements, suppliers have occasionally used 'borrowed announcements' or 'modified announcements'. For instance, one supplier altered a 4 m³ tank announcement to falsely claim 5 m³ capacity, resulting in vehicle rejection during inspection at the local traffic management bureau. In another case, mismatched chassis and upfit announcements (e.g., using a Sinotruk c