Scenario Introduction: Sewer cleaning truck procurement requirement of a municipal sanitation department in Taizhou, Zhejiang. In summer 2025, a municipal sanitation department in Taizhou planned to procure a batch of specialized vehicles for urban stormwater pipeline and riverbed desilting operations. Due to Taizhou’s location on Zhejiang’s coastal region—characterized by year-round high temperatures, heavy rainfall, and humid conditions—the vehicles’ anti-corrosion performance and sealing component durability faced exceptionally stringent requirements. Per local procurement practices, the budget was capped at approximately RMB 342,000 (tax-inclusive, delivered price). The selected model was a blue-license-plate, 5-cubic-meter sewer cleaning truck with a Dongfeng single-cab chassis—ideal for maneuvering in narrow urban streets. After multiple rounds of technical evaluation and tendering procedures, four units of Chengli Special Purpose Automobile Co., Ltd.’s CLW5070GSSD6 sewer cleaning trucks were delivered, each priced at approximately RMB 98,000 (based on publicly available tender information). This article uses this case as a foundation to deeply analyze pre-tender preparations for government procurement, how to draft technical specifications, how Chengli supported the bidding process with documentation, and frequently asked questions (FAQs). I. Pre-Tender Preparation for Government Procurement: Requirement Analysis and Market Research Before officially launching the tender process, the procuring entity typically undertakes the following preparatory steps: Requirement Clarification: The municipal sanitation department in Taizhou held internal discussions to clearly define functional requirements for the sewer cleaning trucks—including self-dumping capability, high-pressure flushing systems, wastewater recovery devices—and mandatory compliance with China VI emission standards. Given the local humid, hot climate, special emphasis was placed on anti-corrosion coating requirements (electrophoretic + powder-coating treatment applied to both chassis and superstructure) and sealing component material specifications (weather-resistant EPDM rubber, ensuring no aging for over five years). Market Research: Through industry exhibitions, manufacturer websites (e.g., Chengli: www.clspecial.com), and historical case databases, the department surveyed mainstream models and pricing. Research revealed that Chengli Special Purpose Automobile Co., Ltd. possesses extensive experience serving over 500 municipal sanitation authorities nationwide; its 5-cubic-meter sewer cleaning trucks—built on Dongfeng chassis and fully compliant with official announcements (e.g., CLW5070GSSD6)—enjoy strong reputations in coastal regions. Budget Formulation: Based on Chengli’s 2026 tax-inclusive delivered pricing reference, the market price range for blue-license-plate, 5-cubic-meter sewer cleaning trucks stood between RMB 112,000 and RMB 131,000 per unit. Accounting for local transportation and registration fees, the procuring entity set an overall budget cap of approximately RMB 342,000 for four units, while reserving roughly RMB 20,000 as a contingency fund for future maintenance and service. II. Drafting Technical Specifications: Key Parameters for Anti-Corrosion and Humid-Hot Environments To address Taizhou’s humid-hot environment, the technical specification document must explicitly highlight the following parameters (referencing official announcement data for Chengli’s CLW5070GSSD6): Parameter Category | Specific Item | Technical Requirement | Chengli Configuration Details Chassis | Model & Emission Standard | Dongfeng single-cab chassis, China VI emission standard, wheelbase 3,308 mm | Original Dongfeng chassis with nationwide warranty coverage Capacity | Tank/Body Volume | 5 cubic meters (effective capacity); Q235 carbon steel construction | Cylindrical body wall thickness: 4 mm; dome end thickness: 5 mm Anti-Corrosion Coating | Electr