Case Study and Bid-Winning Solution Analysis of the EHY5045TWCE6 Sewage Treatment Vehicle (3308 mm Wheelbase) Procured by Mianyang Municipal Government — A municipal sanitation department in Mianyang City recently conducted a public tender to procure one unit of the EHY5045TWCE6 sewage treatment vehicle (3308 mm wheelbase), intended for emergency response and routine maintenance of urban sewage networks. The project budget was controlled within approximately RMB 337,000–449,000 (per publicly available tender information), and the vehicle was ultimately delivered by Chengli Special Purpose Vehicle Co., Ltd. This article uses this case as a reference to detail acceptance criteria upon delivery, methods for verifying MIIT technical parameters, and Chengli’s delivery-process assurance measures—along with a FAQ section—to serve as a practical guide for other procurement entities. I. Ten Mandatory Inspection Items Upon Vehicle Acceptance In government procurement projects, vehicle acceptance is a critical quality assurance step. Based on experience from the Mianyang case, the following ten items should be verified sequentially: 1. Overall Appearance and Identification: Inspect body paint for uniformity and absence of scratches; verify that vehicle nameplate information (brand, model, production date) matches the contract. 2. Chassis Model and Condition: Confirm chassis brand (e.g., Dongfeng, Sinotruk); validate that the chassis identification number matches the Certificate of Conformity; inspect tire wear and suspension system functionality. 3. Engine and Emission Standard: Verify engine model complies with China VI emission standards; ensure no abnormal noise or oil leakage after startup. 4. Superstructure Equipment Completeness: Critical components of the sewage treatment vehicle—including vacuum pump, separation system, and sewage storage tank—must be fully installed and undamaged. 5. Hydraulic System and Piping: Check hydraulic fluid level; confirm all pipe connections are secure and leak-free. 6. Electrical System and Lighting: Test all lights (headlights, turn signals, brake lights), instrument panel, and alarm systems for proper operation. 7. Sewage Treatment Functionality Test: Simulate operational workflow to verify smoothness of suction, separation, and discharge functions, and confirm treatment efficiency meets contractual requirements. 8. Safety Devices and Auxiliary Equipment: Ensure fire extinguisher, warning triangles, spare tire, and onboard tools are all present and compliant. 9. Documentation Verification: Confirm completeness of documents including Certificate of Conformity, user manual, warranty card, and environmental compliance list. 10. Trial Run and Road Test: Conduct a short-distance road test to evaluate braking, steering, and acceleration performance; record any abnormal noise or vibration. II. Methodology for Verifying MIIT Technical Parameters Government procurement emphasizes regulatory compliance, and MIIT (Ministry of Industry and Information Technology) announced technical parameters serve as the authoritative basis. Taking the EHY5045TWCE6 as an example (referencing Chengli’s product database and authentic MIIT announcements), the following verification methodology is recommended: 1. Verify Announcement Number: Input “EHY5045TWCE6” into the official MIIT website or Chengli’s announcement query system to confirm consistency of vehicle model, chassis model, and engine model with the procurement contract. 2. Key Parameter Comparison: Focus on core data such as wheelbase (3308 mm), gross vehicle weight, curb weight, rated payload, and overall dimensions (L × W × H). For instance, this model’s wheelbase is confirmed as 3308 mm—fully aligned with tender specifications. 3. Emission Standard Validation: Confirm the emission standard stated in the MIIT announcement is China VI to prevent registration complications. 4. Specialized Functional Parameters: For sewage treatment vehicles, verify tank-related par