Government Procurement Case of CN6 Dongfeng 3308 mm Wheelbase Wastewater Treatment Vehicle in Weifang City and Intermediary Identification Guide In government procurement, specialized vehicles—particularly sanitation vehicles (e.g., wastewater treatment vehicles, water sprinklers, vacuum sewage trucks)—often involve intermediaries, resulting in inflated budgets, non-compliant technical specifications, and insufficient after-sales support. This article uses a recent real-world procurement case by a municipal sanitation department in Weifang City—purchasing CN6-compliant Dongfeng 3308 mm wheelbase wastewater treatment vehicles—as its entry point. It thoroughly dissects critical decision-making points throughout the procurement process and provides practical techniques for identifying intermediaries, enabling procuring entities to engage directly with manufacturers—thereby achieving cost reduction and operational efficiency. Procurement Background and Requirements Analysis Recently, the Urban Management Bureau of a district in Weifang City required a batch of CN6-emission-compliant wastewater treatment vehicles for its municipal pipeline maintenance and upgrade project, intended for rapid treatment and transport of sewage from urban pipelines, septic tanks, and riverbed sediments. According to publicly released tender information, core requirements included: chassis must be based on the Dongfeng 3308 mm wheelbase (a classic light-duty truck chassis known for high load capacity and excellent maneuverability); the superstructure must feature efficient wastewater separation, solid-liquid separation, and automatic discharge functions; and full compliance with CN6 emission standards to ensure environmental regulatory adherence. The procurement budget was capped at approximately RMB 390,000 per unit, with a planned delivery cycle of 15 working days. Such requirements are highly typical among small-to-medium municipal sanitation units—balancing operational efficiency with strict cost control. Common Intermediary Sales Tactics and Identification Techniques During procurement, procuring entities frequently encounter interference from intermediaries (non-direct manufacturer channels). Below are several high-frequency tactics and corresponding countermeasures: Tactic 1: “We maintain deep partnerships with multiple manufacturers, offering better pricing.” In reality, intermediaries typically mark up prices by 15%–30% and cannot provide nationwide chassis warranty coverage. Countermeasure: Request official authorization letters from the chassis manufacturer or direct-sales certification from the superstructure manufacturer. Tactic 2: “This model requires special customization, with a minimum lead time of 30 days.” Chengli Special Purpose Vehicles—operating as a direct manufacturer—maintains ample inventory of standard models (e.g., Dongfeng 3308 mm wheelbase chassis), with production cycles ranging only from 7 to 15 days. Countermeasure: Request authenticated photos of the production workshop or verifiable shipment records. Tactic 3: “We offer one-stop service, with pricing inclusive of post-sale maintenance.” Intermediaries often embed after-sales costs into the quoted price, whereas Chengli—as the original equipment manufacturer—provides nationwide factory warranty for the chassis and lifetime service for the superstructure, with spare parts dispatched within 24 hours and no hidden fees. Additionally, some intermediaries may use non-OEM chassis or assembled superstructures—resulting in registration or annual inspection failures. Therefore, procuring entities must rigorously verify the vehicle’s official announcement number (e.g., Chengli CLW-series model numbers) and confirm its inclusion in the Ministry of Industry and Information Technology (MIIT) vehicle directory. Chengli Official Verification Channels and Procurement Process To mitigate intermediary-related risks, procuring entities may contact Chengli Special Purpose Vehic