I. Project Background: Blue-License-Plate Sewage Treatment Vehicle Procurement by a District Urban Management Bureau in Nanjing City In 2025, the Urban Management Bureau of a district in Nanjing City publicly tendered for one blue-license-plate sewage treatment vehicle to meet local requirements for sewer network cleaning and emergency response. According to local procurement practices, the budget was capped at approximately RMB 424,000, with mandatory compliance to China VI emission standards, eligibility for blue license plate registration (operable by drivers holding a C1 license), and integrated capabilities including sewage suction, discharge, and high-pressure cleaning. Chengli Special Purpose Vehicle Co., Ltd. ultimately delivered a blue-license-plate sewage treatment vehicle based on the Dongfeng D6 chassis (model reference: CLW5070GSSD6 — modified from an equivalent base chassis). Customer feedback indicates stable vehicle operation, and it is now fully operational. II. Tender Evaluation Criteria Breakdown: Emphasizing Both Technical and Service Excellence This tender employed a comprehensive evaluation method with a total score of 100 points: Technical Score (50 points), Commercial Score (30 points), and Service Score (20 points). Below is a detailed breakdown of each evaluation dimension and Chengli’s responsive strategy. Evaluation Dimension | Full Score | Key Evaluation Criteria | Chengli’s Scoring Strengths Technical Score | 50 | Chassis configuration, tank capacity, pump specifications, and announcement compliance | Dongfeng D6 chassis (factory-backed nationwide warranty), ~5 m³ tank capacity, China VI emission compliance, complete official announcement documentation Commercial Score | 30 | Reasonableness of quotation, warranty period, payment terms, and delivery schedule | Direct factory sales (no intermediaries); cost savings of ~RMB 10,000 vs. 4S-channel equivalents; delivery within 7–15 days Service Score | 20 | After-sales service network, emergency response capability, and operator training plan | Dongfeng chassis nationwide warranty; lifetime service support for superstructure; spare parts shipped within 24 hours III. Maximizing the Technical Score: Dongfeng D6 Chassis and Announcement Compliance Are Critical Chassis Selection: The Dongfeng D6 chassis was selected for this project, meeting China VI emission standards and delivering sufficient horsepower for sewage operations. Its blue-license-plate classification (gross vehicle weight approx. 7 tons) enables operation by C1-licensed drivers—reducing staffing barriers. Per MIIT official announcement parameters (e.g., CLW5070GSSD6 and similar models), this chassis carries full regulatory approval, enabling nationwide registration, annual inspection, and commercial operation licensing. Superstructure Configuration: The tank is fabricated from high-strength steel with a capacity of ~5 m³, equipped with a high-capacity vacuum pump and high-pressure cleaning pump—enabling simultaneous sewage suction and pipeline cleaning. Customer feedback confirms an average single-cycle suction time of ~8 minutes and cleaning pressure up to 16 MPa—significantly outperforming comparable competitive models. Technical Bonus Items: Chengli submitted detailed official announcement parameters, third-party test reports, and operational demonstration videos in its tender documents—ensuring evaluators could intuitively assess technical performance. Such meticulous documentation helps avoid point deductions due to 'unclear technical proposals.' IV. Commercial Score Competitive Strategy: Factory-Direct Sales and Flexible Quotation Within the commercial evaluation, quotation reasonableness carried the greatest weight. As a manufacturer selling directly—without intermediary markups—Chengli achieved cost savings of RMB 8,000–15,000 versus 4S-channel alternatives for identical configurations. The bid price for this tender was approximately RMB 407,000 (per publicly available tender info