Case Background: Municipal sanitation department's sewage treatment vehicle procurement requirement. In 2023, a municipal sanitation department sought to address insufficient local sewage treatment capacity by procuring a batch of National VI emission-standard sewage treatment vehicles for emergency drainage and advanced treatment of rivers, ponds, and municipal pipelines. Following preliminary market research and internal evaluation, the department selected the Dongfeng 3308 mm wheelbase chassis-based sewage treatment vehicle, with a budget capped at approximately RMB 397,000 (per publicly available tender information). The department conducted an open tender to select qualified and capable suppliers. In this case, Hubei Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as 'Chengli')—a leading domestic special-purpose vehicle manufacturer—successfully delivered the vehicles, leveraging its comprehensive MIIT announcement qualifications, extensive delivery experience (e.g., serving over 500 municipal sanitation units), and flexible bid-support services. This article uses the project as a case study to detail key stages—including pre-tender preparation for government procurement, technical specification drafting, and Chengli’s provision of bid-support documentation—to assist both procuring entities and suppliers in optimizing the tendering and bidding process. I. Pre-Tender Preparation for Government Procurement: From Needs Assessment to Tender Announcement Release Prior to issuing the tender announcement, the procuring entity must complete the following preparatory tasks: Needs Confirmation: Clearly define core functions of the sewage treatment vehicle—such as suction, solid-liquid separation, and dry-wet separation—and specify the chassis model (e.g., Dongfeng 3308 mm wheelbase), emission standard (National VI), and critical parameters (e.g., tank volume, suction depth, treatment capacity). Budget Formulation: Based on prevailing market prices and local procurement practices—and referencing Chengli’s 2026 tax-inclusive landed prices (e.g., blue-plate 5 m³ water sprinklers: RMB 111,000–130,000; yellow-plate 8 m³: RMB 145,000–178,000; note that sewage treatment vehicles require separate quotation)—establish a realistic budget. Qualification Review: Verify supplier requirements, including MIIT Announcement qualification (e.g., Chengli models such as CLW5070GSSD6 with full announced parameters), ISO certification, and after-sales service capability. Tender Document Preparation: Engage a tender agency to draft tender documents, including the technical specification sheet, commercial terms, and evaluation criteria. At this stage, Chengli offers free technical consultation and model-selection advice to help procuring entities clarify requirements. For instance, for the Dongfeng 3308 mm wheelbase chassis, Chengli provides multiple upper-structure configuration options (e.g., tank material, suction pump model, electronic control system) and delivers detailed parameter comparison tables. II. How to Draft a Technical Specification Sheet: Example for Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle The technical specification sheet is the core component of tender documents, clearly defining vehicle technical parameters, performance requirements, and configuration standards. Below is an illustrative specification framework: National VI Dongfeng 3308 mm Wheelbase Sewage Treatment Vehicle Technical Specification Sheet (Example) | Item | Technical Parameter Requirement | Remarks | |------|----------------------------------|---------| | Chassis Model | Dongfeng 3308 mm wheelbase, National VI emission standard | Refer to Chengli models such as CLW5070GSSD6 | | Tank Volume | ≥4 m³ | | | Suction Depth | ≥6 meters | | | Treatment Capacity | ≥10 m³/h | | | Dry-Wet Separation Efficiency | ≥90% | | | Upper-Structure Material | Q235 carbon steel or 304 stainless steel, corrosion-resistant |