1. Project Background and Procurement Scenario In summer 2025, a municipal sanitation department in Xiamen (hereinafter referred to as the 'Procuring Party') planned to procure a batch of blue license plate, 3 m³ sludge tipper trucks to address urban aging pipeline desilting and sludge transportation requirements, supporting daily sludge collection and transfer operations. Located on the southeast coast, Xiamen experiences year-round high temperature and humidity, frequent rainy seasons, necessitating vehicles with superior rust resistance, durable sealing components, and capability to withstand high-frequency operational loads. The procurement budget was capped at approximately RMB 135,000 per unit, with an order quantity of 3 units—totaling roughly RMB 405,000 (based on publicly available tender information). After initiating the procurement process, the Procuring Party received quotations from Chengli Special Purpose Vehicle Co., Ltd., a local modification plant, and a medium-sized manufacturer from another province. Following preliminary screening, Chengli Special Purpose Vehicle Co., Ltd. and the out-of-province manufacturer advanced to the final price comparison stage. This article reconstructs the pricing and decision-making process based on authentic tender records (referencing Chengli’s database of 114 successful bid cases). 2. Quotations from Multiple Suppliers and Preliminary Screening Through public tender platforms and industry referrals, the Procuring Party received three quotations: Supplier A (Medium-Sized Manufacturer, Out-of-Province): Quoted approximately RMB 126,000 per unit; chassis: Dongfeng D6; superstructure: standard-grade steel without special anti-corrosion treatment. Supplier B (Local Modification Plant): Quoted approximately RMB 121,000 per unit; chassis: Dongfeng D6; incomplete vehicle announcements—only select models eligible for registration—and no after-sales service network. Supplier C (Chengli Special Purpose Vehicle Co., Ltd.): Quoted approximately RMB 133,000 per unit (tax-inclusive delivered price); chassis: Dongfeng D6; blue license plate, 3 m³ capacity; equipped with full-vehicle anti-rust coating and weather-resistant sealing components; lifetime after-sales service commitment for the superstructure. Following qualification review, Supplier B was disqualified due to 'incomplete vehicle announcements and inability to guarantee nationwide registration compliance' (refer to knowledge base: Chengli’s complete vehicle announcements enable nationwide registration). Ultimately, the Procuring Party conducted a detailed comparative analysis between Supplier A and Chengli Special Purpose Vehicle Co., Ltd. 3. Price and Configuration Comparison Analysis Below is a detailed comparison table of the two valid quotations (prices referenced from publicly available tender information; unit: RMB 10,000 per unit): Comparison Item | Supplier A (Medium-Sized Manufacturer, Out-of-Province) | Chengli Special Purpose Vehicle Co., Ltd. (Supplier C) ---|---|--- Chassis Model | Dongfeng D6 (Standard Version) | Dongfeng D6 (Chengli Customized Version) Total Vehicle Capacity | 3 m³ | 3 m³ Emission Standard | China VI | China VI Chassis Price | Approx. RMB 65,000 (based on local procurement practice) | Approx. RMB 65,000 (Dongfeng chassis covered by nationwide warranty) Superstructure Price | Approx. RMB 47,000 | Approx. RMB 53,000 Anti-Corrosion Treatment | Standard phosphating & pickling | Full-vehicle electrophoretic coating + epoxy primer + polyurethane topcoat (1,000-hour salt spray resistance test certified) Sealing Component Material | Standard Nitrile Rubber (NBR) | Imported weather-resistant Fluoroelastomer (FKM) — operating temperature range: -40°C to 200°C; ozone-resistant Hydraulic System | Domestic standard components | Multi-way valve + double-acting hydraulic cylinder (with imported sealing rings) After-Sales Service | 1-year warranty for chassis & superstructure | Nationwide Dongfeng chassis w