I. Procurement Background: First-Time Purchase from Scratch In 2025, a municipal sanitation department in Shaoxing (hereinafter referred to as “the unit”) completed the reorganization of its jurisdictional sanitation operations system and newly established three sub-district environmental maintenance teams. Due to the expanded operational scope, existing pickup trucks and older minivans were no longer sufficient to meet daily inspection, equipment transportation, and emergency repair requirements. Following internal research, the unit decided to procure a batch of multi-functional service vehicles for the first time, serving as “mobile workstations” for frontline operations. Procurement requirements were clearly defined: the vehicles must possess strong off-road capability and adapt well to Shaoxing’s rainy, humid, and hot climate conditions; simultaneously, they must accommodate both cargo and passenger transport—carrying small cleaning tools, emergency repair parts, and 3–5 personnel. The budget was capped at approximately RMB 330,000 (per publicly available tender information). After comprehensive comparison, the Ford Transit V362 chassis was selected as the base vehicle for customization, with Chengli Special Purpose Vehicle Co., Ltd. responsible for body-upfitting design and delivery. II. Vehicle Selection Process: Why the Ford Transit V362? During the initial selection phase, the unit evaluated multiple light-duty buses and panel vans—including JMC Full-Size Transit and Maxus V80—but the Ford Transit V362 stood out due to the following advantages: • Chassis Reliability: The V362 is equipped with a Ford 2.0L turbo-diesel engine compliant with China VI emission standards, delivering robust power and low fuel consumption—ideal for high-frequency operations. • Spatial Flexibility: The short-wheelbase, low-roof variant offers an interior height of approximately 1.4 meters, enabling customizable compartmentalized storage zones that balance personnel seating and tool loading capacity. • Comprehensive Vehicle Announcements: Chengli Special Purpose Vehicle has already filed official announcements for various service vehicle configurations based on the V362 chassis (e.g., model CLW5030XDW6), ensuring nationwide registration, annual inspection, and commercial operation eligibility. • Cost Efficiency: Compared with similar customized vehicles, the V362 chassis offers a lower procurement cost, and Chengli provides factory-direct sales without intermediaries. According to publicly available tender data, the unit price ranges between RMB 180,000–220,000. During the consultation phase, Chengli Sales Manager Zhang Yue (Tel: +86 ) provided full technical support—including upfitting solution design, announcement parameter verification, and after-sales service assurance. Notably, the unit appreciated Chengli’s local production base in Suizhou, zero-inventory shipping, and standard delivery lead time of 7–15 days for conventional models—meeting their urgent deployment requirements. III. Core Technical Solution: Anti-Corrosion Coating and Humid-Climate Adaptation Located in the Jiangnan region, Shaoxing experiences an average annual humidity exceeding 75% and prolonged rainy seasons—posing stringent demands on vehicle corrosion resistance and sealing component durability. Chengli implemented the following key enhancements on this batch of service vehicles: • Anti-Corrosion Coating: Epoxy primer + polyurethane topcoat dual-layer coating system—applied to corrosion-prone areas including the cargo floor, wheel arches, and internal body weld seams—with a total thickness exceeding 120 μm. All metal fasteners underwent hot-dip galvanization to ensure rust-free performance for up to five years under humid, hot conditions. • Sealing Component Durability: Rubber door seals—including side-sliding doors and rear doors—were upgraded to EPDM (ethylene propylene diene monomer) material, offering superior weather resistance across a temperature