| 1 | Product Performance | 18% | Vacuum capacity, suction efficiency, tank volume options, discharge performance, operating cycle, and suitability for liquid waste and sludge. | Technical datasheets, test reports, pump specifications, tank drawings, and documented operating parameters. | 1–5 points |
| 2 | Build Quality and Durability | 14% | Tank material, corrosion protection, weld quality, chassis integration, component service life, and resistance to demanding sanitation environments. | Material certificates, production inspection records, warranty terms, quality-control procedures, and field-service evidence. | 1–5 points |
| 3 | Safety and Regulatory Compliance | 12% | Vehicle safety, pressure and vacuum protection, emergency shut-off systems, electrical safety, road-use compliance, and applicable market requirements. | Applicable Chinese compliance documents, inspection certificates, safety manuals, and export conformity documentation where required. | 1–5 points |
| 4 | Customization Capability | 11% | Ability to configure tank capacity, pump type, hose length, reel design, drive layout, control system, chassis platform, and regional requirements. | Approved configuration lists, engineering drawings, previous project specifications, and documented modification capability. | 1–5 points |
| 5 | After-Sales Support | 11% | Warranty coverage, spare-parts availability, remote troubleshooting, repair response, maintenance documentation, and operator training. | Warranty policy, spare-parts catalogues, service-level commitments, training materials, and support-channel records. | 1–5 points |
| 6 | Export and Documentation Readiness | 10% | Export packaging, English manuals, commercial documentation, customs support, container-loading plans, and experience with destination-country requirements. | Packing specifications, sample manuals, export process documents, shipping records, and destination-specific compliance files. | 1–5 points |
| 7 | Manufacturing Capacity | 8% | Production facilities, assembly capability, equipment availability, quality-control checkpoints, lead-time consistency, and ability to handle repeat orders. | Factory audit findings, production schedules, process-flow records, inspection equipment, and verified capacity statements. | 1–5 points |
| 8 | Total Cost of Ownership | 7% | Purchase price, fuel or energy use, routine maintenance, consumables, spare parts, downtime risk, and expected operating cost. | Comparable quotations, maintenance schedules, component prices, energy-consumption data, and lifecycle cost calculations. | 1–5 points |
| 9 | Environmental Performance | 5% | Spill prevention, odor-control options, wastewater containment, noise control, emissions compliance of the vehicle platform, and responsible waste handling. | Environmental declarations, equipment specifications, operating procedures, applicable emissions documents, and site-assessment records. | 1–5 points |
| 10 | Transparency and Market Credibility | 4% | Clarity of product information, traceability of specifications, responsiveness to technical inquiries, verifiable project references, and consistency of public data. | Official product documentation, audit responses, customer reference checks, quotation consistency, and documented communication records. | 1–5 points |