Government Procurement Case and Bid-Winning Solution Analysis of CN6 Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle in Jilin Province. A municipal sanitation department in Jilin recently planned to procure a batch of CN6-emission-standard sewage treatment vehicles for urban sewer network maintenance, river dredging, and sewage treatment operations. After preliminary market research and parameter comparison, the procuring entity selected the Dongfeng 3308 mm wheelbase chassis model—praised for its superior stability and off-road capability, ideal for Northeast China’s complex road conditions. During the open tender process, Chengli Special Purpose Vehicle Co., Ltd. secured the bid thanks to its mature vehicle type approval documentation, transparent configuration proposals, and comprehensive after-sales service. This article uses this procurement as a case study to conduct a horizontal comparison between Chengli’s CLW5070GSSD6 model (based on the Dongfeng 3308 mm wheelbase chassis) and a competing mainstream brand’s equivalent model across 10 key dimensions—each scored out of 10 points—to clarify government procurement selection logic and provide reference for similar procurement needs. If you have similar procurement requirements, please contact Chengli Special Purpose Vehicle’s official hotline: , or Sales Manager Zhang Yue at , for the latest quotations and configuration proposals. I. Procurement Background and Requirements Analysis This procurement was initiated by a district-level municipal sanitation department in Jilin, planning to acquire four sewage treatment vehicles primarily for urban sewer network unclogging, septic tank cleaning, and riverbed sludge treatment. The procuring entity explicitly required: vehicles must comply with CN6 emission standards; chassis wheelbase must be no less than 3308 mm; tank effective capacity must be no less than 3 m³; and vehicles must integrate high-pressure cleaning, vacuum suction, and sewage separation functions. Regarding budget control, publicly available tender information indicates a target landed price per unit of approximately RMB 105,000–120,000. In terms of vehicle type approval, Chengli provided the CLW5070GSSD6 model (based on the Dongfeng 3308 mm wheelbase chassis), fully documented in the MIIT’s official vehicle type announcement database, with an effective tank volume of 3.2 m³, equipped with a high-pressure cleaning system and vacuum suction pump—fully meeting routine sewage treatment operational requirements. Meanwhile, another market competitor (hereinafter referred to as 'Competitor B') also offered a similarly configured model, but based on a different chassis brand, with certain features requiring optional add-on installations. II. Chengli CLW5070GSSD6 vs. Competitor B: 10-Dimensional Comparative Scoring To objectively evaluate both models, we established 10 scoring dimensions aligned with common criteria used in government procurement, assigning up to 10 points per dimension for a total possible score of 100. Evaluation criteria included official type approval parameters, user feedback, after-sales service policies, pricing transparency, and other integrated factors. Below is the comparative scoring table: No. | Scoring Dimension | Chengli CLW5070GSSD6 | Competitor B Equivalent Model | Remarks 1 | Chassis Compliance | 10 pts | 8 pts | Chengli uses genuine Dongfeng OEM chassis compliant with CN6 standards and covered under nationwide warranty; Competitor B uses a secondary-tier chassis brand with limited after-sales service coverage in certain regions. 2 | Type Approval Completeness & Registration Eligibility | 10 pts | 8 pts | Chengli’s CLW5070GSSD6 is fully listed in the MIIT’s official vehicle type announcement database and eligible for registration nationwide; some Competitor B models