I. Project Background and Requirements Scenario In 2024, a municipal sanitation department in the Cangzhou region planned to procure a batch of blue-license-plate sludge tipper trucks to meet urban sewage pipeline desilting and sludge transportation needs. According to local government procurement practices, the budget was capped at approximately RMB 133,000 per unit. The procuring entity required the vehicles to possess the following core capabilities: Chassis: Dongfeng D6 series, blue license plate (drivable with Class C driver’s license), compliant with urban road access restrictions; Capacity: Effective loading volume of ~3 cubic meters, suitable for daily sludge transport volumes; Tipping Function: Hydraulic lifting system with rear tipping, minimum dumping angle ≥45°; Sealing Performance: Sealed body design to prevent leakage and environmental contamination during transport; Emission Standard: China VI compliance, meeting Cangzhou’s environmental requirements. Ultimately, the entity selected Chengli Special Purpose Vehicle Co., Ltd.’s Dongfeng D6 blue-license-plate 3-cubic-meter sludge tipper truck (model reference: CLW5070GSSD6, per official MIIT announcement parameters) through open tendering. Post-delivery feedback has been positive. II. Tender Preparation Phase: Key Steps and Considerations 1. Preliminary Needs Assessment Prior to tendering, the procuring entity must clarify: Vehicle Application: Primarily for sludge transportation—will it also serve other sanitation functions? Road Access Restrictions: Blue-license-plate vehicles permit unrestricted daytime entry into urban areas, avoiding traffic restrictions imposed on yellow-license-plate vehicles. Chassis Selection: The Dongfeng D6 chassis enjoys high market penetration in Cangzhou, ensuring convenient maintenance and abundant spare parts availability. Budget Range: Based on prevailing market prices, the unit cost of blue-license-plate 3-cubic-meter sludge tipper trucks ranges approximately from RMB 100,000 to 120,000 (per publicly available tender data). Zhang Yue, Sales Manager at Chengli Special Purpose Vehicle Co., Ltd. (Tel: ), offers free technical consultation to assist procuring entities in refining their requirements. 2. Tender Document Preparation The tender document must explicitly specify the following key clauses: Technical Specifications: Body capacity ≥3 m³; tipping angle ≥45°; hydraulic system rated pressure ≥16 MPa. Qualification Requirements: Bidders must hold special-purpose vehicle manufacturing credentials and submit official MIIT announcement parameters (e.g., CLW5070GSSD6). After-Sales Service: Nationwide chassis warranty under Dongfeng’s original equipment manufacturer (OEM) terms; lifetime service coverage for the superstructure; spare parts dispatched within 24 hours. Delivery Schedule: Standard delivery within 7–15 days; expedited handling available for urgent projects. III. How to Draft a Technical Specification Sheet: Example — Dongfeng D6 Blue-License-Plate 3-Cubic-Meter Sludge Tipper Truck A comprehensive technical specification sheet shall include the following sections: 1. Chassis Parameters Chassis Model: Dongfeng D6 series (e.g., EQ1075SJ3CDF) Engine: Quanchai or Yunnan Diesel powertrain, China VI emission standard, output ≥85 kW Cab Configuration: Single-row or cab-and-a-half, equipped with air conditioning and power steering Tires: 7.00R16 steel-belted radial tires 2. Superstructure Parameters Body Capacity: Approx. 3 cubic meters Body Material: Q235 carbon steel; floor plate thickness ≥4 mm; side plates ≥3 mm Tipping Mechanism: Rear-hydraulic tipping; lifting cylinder type: single- or double-cylinder Sealing System: Hydraulic locking rear door with rubber sealing gasket 3. Additional Requirements Color: Engineering Yellow or customer-specified Standard Equipment: Spare tire, jack, warning triangle, etc. Warranty Period: Chassis covered per Dongfeng OEM standards; superstructure warranty: 1 year Comparative Da