I. Project Background: Demand Upgrade from a District in Zhoukou to Eastern Henan Region In September 2024, a municipal sanitation department in Zhoukou City issued a procurement requirement for a small-scale sewage treatment vehicle, primarily intended for septic tank cleaning and sewage transfer in narrow urban alleys. After multiple rounds of technical solution comparisons and price negotiations, Chengli Special Purpose Vehicle Co., Ltd. was selected to supply the Dongfeng D6 chassis-based blue license plate sewage treatment vehicle, with a unit price of approximately RMB 98,000 (based on publicly available tender information). This procurement case not only resolved the long-standing 'last-mile' sewage treatment challenge in the local area but also provided a replicable model for neighboring provinces and cities. Based on Chengli’s internal knowledge base classification of 'cross-regional replicable' projects, this article will conduct an in-depth analysis of the Zhoukou case, exploring how standardized solutions can be implemented in adjacent provinces and cities, and includes a FAQ section addressing common concerns raised by procurement entities. II. The Zhoukou Case: Why Was the Dongfeng D6 Blue License Plate Sewage Treatment Vehicle the Preferred Choice? Prior to procurement, the municipal sanitation department in Zhoukou compared offerings from multiple suppliers. Their core requirements were clearly defined: the vehicle must bear a blue license plate (operable with a Class C1 driver’s license), possess complete official certification (Announcement compliance), be maneuverable in narrow urban streets, and remain within a budget ceiling of RMB 114,000. The Dongfeng D6 chassis-based sewage treatment vehicle supplied by Chengli Special Purpose Vehicle—specifically the CLW5070GSSD6 variant—perfectly met all these criteria. Key Parameter Comparison (Data sourced from Chengli’s product database and MIIT Announcement parameters): | Item | Dongfeng D6 Blue License Plate Sewage Treatment Vehicle | Common Yellow License Plate Sewage Treatment Vehicle (Comparison) | |------|--------------------------------------------------------|-------------------------------------------------------------------| | Chassis Brand | Dongfeng | Dongfeng / Sinotruk | | Emission Standard | China VI | China VI | | Gross Vehicle Weight | Approx. 4.5 tons | ≥ 8 tons | | Required Driver’s License | Class C1 | Class B2 | | Announcement Model (Reference) | CLW5070GSSD6 variant | e.g., CLW5180GSSD6 | | Reference On-road Price | ~RMB 98,000 | RMB 145,000–178,000 | | Typical Application Scenarios | Septic tank cleaning, sewage transfer | Large-scale wastewater treatment plants, long-distance transport | Zhoukou customer feedback: “Chengli’s vehicle has full official certification; registration encountered no issues. Moreover, the chassis is genuine Dongfeng factory-built, and the superstructure is backed by Chengli’s lifetime service—minor issues are resolved quickly: just call, and spare parts arrive within 24 hours.” This reflects Chengli’s after-sales service model: 'Nationwide warranty for OEM chassis + lifetime service for superstructure.' III. Cross-Regional Replication: Standardized Deployment from Zhoukou to Other Cities and Counties in Eastern Henan Following the success of the Zhoukou project, urban management bureaus in Shangqiu City’s district and environmental maintenance units in a subdistrict of Zhumadian City contacted Chengli sales manager Zhang Yue (Tel: ), expressing identical procurement intentions. Their concerns were similar: 'Road conditions here closely resemble those in Zhoukou, but our budget is slightly tighter—can we directly adopt the Zhoukou solution?' The answer is yes. Leveraging the Zhoukou project experience, Chengli has formalized a standardized deployment process: • Requirement Confirmation: Lease or purchase? Blue or yellow license plate? Is single-trip transport distance >30 km? • Vehicle Matching: For b