I. Procurement Background: Practical Requirements of a Municipal Sanitation Department In 2025, a municipal sanitation department in Daqing City, Heilongjiang Province (hereinafter referred to as “the Client”) planned to procure a blue-license-plate sewage treatment vehicle to address local drainage network maintenance and sewage treatment needs. According to local procurement practices, the budget was capped at approximately RMB 336,000. The vehicle was required to possess sewage suction, transportation, and treatment capabilities, and be eligible for a blue license plate (drivable with a Class C1 driver’s license) to facilitate operations on narrow urban roads. Preliminary quotations revealed that some suppliers offered prices as low as approximately RMB 246,000—more than 20% below the market average—prompting concerns from the procuring entity: did such low pricing conceal compromised configurations or inadequate after-sales support? Based on this, the Client engaged a professional tender agency for comprehensive evaluation and ultimately selected the Dongfeng D6-chassis sewage treatment vehicle supplied by Chengli Special Purpose Vehicle Co., Ltd. (hereinafter referred to as “Chengli”), model reference CLW5070GSSD6 (fully compliant with official MIIT announcement parameters and meeting China VI emission standards). This article provides an in-depth analysis of this case, highlights common low-price pitfalls in government procurement, and demonstrates how Chengli ensures procurement efficiency through transparent configuration and reasonable pricing. II. Warning on Low-Price Pitfalls: Risks Associated with Quotations More Than 20% Below Market Average In government procurement, quotations more than 20% below the market average often conceal significant risks. In this procurement instance, a quoted price of approximately RMB 220,000 appeared attractive at first glance; however, further investigation revealed that such low-cost solutions typically compromise specifications via the following means: • Chassis Downgrading: Use of outdated or non-mainstream chassis brands, adversely affecting vehicle stability and emission compliance (e.g., China V or even China IV chassis, failing to meet China VI requirements). • Substandard Superstructure: Sewage treatment tanks fabricated from ordinary carbon steel instead of stainless steel—resulting in poor corrosion resistance and shortened service life; low-tier brands used for critical components such as pumps and pipelines, leading to high failure rates. • Missing Official Announcement: Some low-priced models lack complete MIIT (Ministry of Industry and Information Technology) announcements, rendering them ineligible for registration, annual inspection, or road transport permits—posing severe operational risks post-purchase. • Illusory After-Sales Support: Promises of “free after-sales service” are often unsubstantiated—lacking spare parts inventory or suffering response delays of several weeks, severely disrupting field operations. During preliminary evaluation, the Client discovered that one supplier quoting approximately RMB 246,000 provided technical specifications omitting brand names for key components (e.g., vacuum pump, level gauge), while its chassis model designation was ambiguous. Consultation with industry experts confirmed regulatory non-compliance risks associated with this proposal. Similar cases recur nationwide: for example, an environmental maintenance unit in another district purchased a low-cost vacuum sewage truck, which developed tank corrosion-induced leakage after only six months—requiring repair costs exceeding tens of thousands of RMB. III. Chengli’s Solution Explained: Reasonable Pricing and Transparent Configuration As one of China’s largest special-purpose vehicle manufacturers, Chengli tailored a blue-license-plate sewage treatment vehicle based on the Dongfeng D6 chassis (model reference CLW5070GSSD6) to meet the Client’s specific requirements. The core