Wuhu Dongfeng D6 Blue-Plate Sewage Treatment Vehicle Government Procurement Case and Bid-Winning Solution Analysis During the Spring Festival 2025, a district Urban Management Bureau in Wuhu faced a 'sewage emergency response operation'. Due to a surge in population mobility during the holiday period, sewage discharge from catering and commercial areas increased by approximately 30% compared to normal levels, causing blockages and overflow risks in some aging pipelines. To ensure urban environmental cleanliness, the unit urgently initiated a procurement process and ultimately delivered five Dongfeng D6 blue-plate sewage treatment vehicles (model reference: CLW5070GSSD6). These vehicles performed stably during the Spring Festival support mission, achieving an operational availability rate exceeding 98%, effectively supporting emergency sewage cleanup operations. This article analyzes this government procurement case from a practical perspective and explores the core competitive advantages of the Dongfeng D6 blue-plate model within the winning bid proposal. I. Spring Festival Support Mission and Chengli Vehicle Operational Availability Rate In mid-January 2025, a district Urban Management Bureau in Wuhu received its Spring Festival support assignment: conducting sewage pipeline inspections and pre-treatment across 10 key zones within two weeks. With tight deadlines and heavy workloads, the procurement department swiftly evaluated Chengli Special Purpose Vehicle’s Dongfeng D6 blue-plate sewage treatment vehicle proposal. According to publicly released tender information, the total budget for this batch was capped at approximately RMB 389,000 (unit price around RMB 70,000), and Chengli ultimately won the bid. Regarding operational availability, Chengli vehicles delivered outstanding performance. According to client feedback, all five vehicles operated continuously for 15 days during the Spring Festival period, accumulating approximately 1,200 operating hours, with only one temporary shutdown caused by operator error—resulting in an overall operational availability rate of 98.3%. This high reliability stems from Chengli’s adoption of the Dongfeng chassis nationwide warranty system (refer to corporate knowledge base: Dongfeng Chassis Nationwide Warranty; Chengli Superstructure Lifetime After-Sales Support) and rapid local responsiveness enabled by production in Suizhou—standard models can be delivered within 7–15 days, perfectly meeting urgent pre-Spring Festival delivery requirements. Specific data is summarized in the table below: | Item | Value | Remarks | |------|-------|---------| | Procurement Quantity | 5 units | Dongfeng D6 blue-plate sewage treatment vehicles (CLW5070GSSD6) | | Support Duration | 15 days (Jan 25 – Feb 8, 2025) | Pre- and post-Spring Festival period | | Cumulative Operating Hours | 1,200 hours | 24/7 shift-based operation | | Operational Availability Rate | 98.3% | Only one temporary shutdown | | Fault Type | Hydraulic hose jam due to operator error | Repaired on-site in 2 hours | | Emergency Response | Spare parts shipped directly within 24 hours | Chengli after-sales hotline provided assistance | II. Practical Analysis of Emergency Fault Resolution On Day 8 of the Spring Festival support mission, a Dongfeng D6 sewage treatment vehicle experienced a hydraulic valve misoperation while cleaning narrow alleys in the old city area, causing suction pipe jamming and halting normal operation. On-site personnel immediately contacted Chengli’s after-sales service team and attempted remote troubleshooting via telephone guidance—but without success. Chengli then activated its emergency response plan: spare parts were dispatched directly from its Suizhou headquarters (refer to corporate knowledge base: Spare parts shipped within 24 hours), and a certified technician from Chengli’s local authorized service station arrived on-site that same evening for repairs. The entire resolution process took only