Luoyang Dongfeng Dual-Cab Sewer Cleaning Truck (Blue License Plate, 3 m³) Government Procurement Case: From Referral by Existing Customer to Efficient Delivery. In municipal sanitation equipment procurement, sewer cleaning trucks—critical tools for urban drainage system maintenance—are experiencing continuously growing demand. In 2024, a municipal sanitation department in Luoyang City procured the Dongfeng dual-cab sewer cleaning truck (blue license plate, 3 m³) through a referral from an existing customer. This case not only demonstrates Chengli Special Purpose Vehicle’s professional expertise in sewer cleaning trucks but also highlights how reputation-driven procurement reduces risk and improves efficiency. This article comprehensively analyzes the procurement process—from background and vehicle specifications to budget analysis and frequently asked questions. I. Case Background: Procurement Decision Driven by Referral from an Existing Customer A municipal sanitation department in Luoyang City is responsible for routine sewer cleaning operations across the city’s drainage network. Its existing equipment had severely aged, necessitating the acquisition of a new, high-efficiency, and compliant sewer cleaning truck. The department had previously collaborated with Chengli Special Purpose Vehicle, having purchased a water-sprinkling truck (model CLW5070GSSD6), which performed reliably and received prompt after-sales support. During an industry exchange event, the department learned that a peer—namely, a sanitation office in Henan Province (which had purchased ten 5-m³ water-sprinkling trucks from Chengli)—had highly praised Chengli’s sewer cleaning trucks. Consequently, the department proactively contacted Chengli sales manager Zhang Yue () for consultation. Based on local procurement practices, Zhang Yue recommended the Dongfeng dual-cab sewer cleaning truck (blue license plate, 3 m³). Built on a Dongfeng chassis, this model features a dual-cab configuration accommodating up to five personnel, complies with blue license plate requirements (drivable with Class C driver’s license), and is well-suited for operations on narrow urban roads. According to publicly available tender information, comparable models in the Luoyang region are typically budgeted between RMB 137,000 and 172,000; the final contract price was approximately RMB 155,000 (tax-inclusive delivered price), aligning with expectations. II. Vehicle Specifications and Announcement Model Interpretation The vehicle procured in this case is the Dongfeng dual-cab sewer cleaning truck manufactured by Chengli Special Purpose Vehicle, with official announcement model number CLW5070GSSD6 (based on Dongfeng chassis). Key specifications are as follows: - Chassis Brand: Dongfeng; meets China VI emission standards; nationwide warranty coverage. - Cab Configuration: Dual-cab, seating capacity for five personnel—ideal for team-based operations. - Tank Capacity: 3 m³—sufficient for routine sewer cleaning tasks. - Emission Standard: China VI—eligible for registration nationwide. - Drive Configuration: Blue license plate; operable with Class C driver’s license. - Superstructure Configuration: Equipped with vacuum sludge suction system, maximum suction depth of 6 meters, and hydraulic tipping mechanism for unloading. - After-Sales Support: Dongfeng chassis covered under nationwide warranty; Chengli superstructure supported by lifetime service; spare parts shipped within 24 hours. Per the Ministry of Industry and Information Technology (MIIT) official announcement (model CLW5070GSSD6), the vehicle’s gross vehicle weight rating (GVWR) is approximately 7 tons, and its curb weight is about 4.5 tons—well suited for urban pipeline cleaning operations. III. Comparative Analysis: Chengli Sewer Cleaning Truck vs. Mainstream Competitors To assist procurement entities in conducting comprehensive evaluations, we have compiled comparative data for the Chengli Dongfeng dual-cab sewer clea