Government procurement case of the EHY5045TWCE6 3308 sewage treatment vehicle in Fuzhou: Parts procurement and solution analysis. In municipal sanitation operations across Fujian Province’s Fuzhou City, sewage treatment vehicles serve as critical equipment for handling high-load operations during the rainy season and routine pipeline maintenance—making their procurement and subsequent maintenance costs a key concern. This article takes the procurement of the EHY5045TWCE6 3308 sewage treatment vehicle by an environmental maintenance unit in a Fuzhou subdistrict as a case study, offering an in-depth analysis of parts procurement strategies, pricing transparency, and Chengli Special Purpose Automobile’s 24-hour direct shipment service advantage. Comparisons with 4S channels, along with a consumable parts list and FAQ, support procurement personnel in making more informed decisions. All information is sourced from publicly available tender records and the Chengli Automobile knowledge base, ensuring objectivity and practicality. I. Case Background: Procurement Requirements under Fuzhou’s Humid and Hot Climate Fuzhou City lies on the southeast coast and features a subtropical monsoon climate—characterized by high humidity, abundant rainfall, and frequent typhoons in summer—placing significant stress on urban drainage systems and sewage pipelines. In late 2025, an environmental maintenance unit in a Fuzhou subdistrict launched a public tender to procure one EHY5045TWCE6 3308 sewage treatment vehicle for rainwater accumulation pumping and routine sewage cleaning. The tender specifications explicitly required corrosion resistance, durable sealing components, and suitability for long-term operation in high-humidity environments. After multiple rounds of evaluation, Chengli Special Purpose Automobile Co., Ltd.’s EHY5045TWCE6 model was selected and delivered. Customer feedback confirms stable performance during rainy-season operations. The vehicle is built on the Dongfeng 3308-wheelbase chassis, complies with China VI emission standards, and features an upper-body tank fabricated from 304 stainless steel with anti-corrosion coating—specifically engineered to withstand Fuzhou’s humid conditions. According to tender documentation, the vehicle’s unit price is approximately RMB 220,000 (based on publicly disclosed tender data), with the total budget capped at RMB 280,000—consistent with local procurement norms. II. Parts Procurement Analysis: Consumable Parts List and Pricing Transparency In government procurement, long-term parts costs—beyond the initial vehicle purchase—are pivotal decision factors. Chengli Special Purpose Automobile provides a comprehensive parts catalog with fully transparent pricing and no hidden fees. Below is a list of common consumable parts for the EHY5045TWCE6 model, along with their functions and reference prices: Sealing Components (O-rings, oil seals): Used at sewage tank and pipeline connection points; prone to aging in hot, humid environments. Chengli uses fluororubber material—offering superior corrosion resistance and extended service life—at RMB 170–220 per set. Vacuum Pump Vanes: Core component for suction; subject to high-frequency use during rainy seasons. Per Chengli’s database, replacement intervals range from 6 to 12 months, with unit prices between RMB 800–1,200. Sewage Filter Screens: Capture large debris to prevent clogging. Made of stainless steel, priced at RMB 300–500 each. Hydraulic Oil Hoses: Connect the lifting system; must withstand high pressure and corrosion resistance. Priced at RMB 200–400 per piece. Tires: Original-equipment Dongfeng chassis tires, priced at RMB 800–1,200 per tire (market reference). Chengli guarantees full pricing transparency—no bundled packages—and customers may contact Sales Manager Zhang Yue directly (Tel: +86 ) for the latest parts list. Additionally, the Dongfeng chassis is covered by nationwide warranty, while the upper-body assembly is backed