| Material Specification and Traceability | 15% | Clearly declared material grades, such as stainless steel 304 or 316, aluminum, brass, zinc alloy, or certified solid wood. Every production batch should be traceable to a purchase order, raw-material lot, and inspection record. | Material certificates, supplier declarations, batch codes, incoming inspection records, and independent composition testing when required. |
| Corrosion Resistance | 15% | Products should be tested using a recognized method such as ASTM B117 or ISO 9227. Reported exposure hours must be accompanied by the tested finish, substrate, test conditions, and clearly defined failure criteria because salt-spray hours are not directly comparable between different products. | Complete laboratory reports, coating system details, test photographs, failure definitions, and retest records after design or finish changes. |
| Mechanical Durability | 15% | Hinges, slides, and moving fittings should have documented cycle testing under a stated load and installation configuration. The supplier should specify the tested cycle count rather than using vague terms such as “heavy duty.” | Cycle-test reports, load ratings, fixture drawings, test speed, pass/fail criteria, and results for samples from normal production. |
| Finish Adhesion and Wear Performance | 12% | Painted, plated, powder-coated, or electroplated surfaces should demonstrate consistent adhesion and resistance to abrasion, scratching, discoloration, and household cleaning agents. Cross-cut adhesion can be assessed using ISO 2409 or an equivalent method. | Adhesion results, coating thickness records, pencil-hardness or abrasion results where applicable, chemical-resistance testing, and finish color standards. |
| Dimensional Accuracy and Fit | 10% | Critical dimensions, hole spacing, screw length, mounting geometry, and component tolerances should be defined on controlled drawings. Products must fit the stated cabinet system without excessive play, binding, or misalignment. | Approved engineering drawings, tolerance tables, first-article inspection reports, calibrated measuring equipment, and sampling records based on ISO 2859-1 or an equivalent quality plan. |
| Load Capacity and Safety | 10% | Load ratings should state whether they apply to one component, one pair, or a complete assembly. The rating should include the test position, mounting method, safety factor, and any restrictions on cabinet construction or fasteners. | Load-test reports, installation instructions, safety warnings, structural drawings, and verification using the intended cabinet material and fasteners. |
| Quality Management and Process Control | 8% | A mature supplier controls incoming materials, production parameters, calibration, nonconforming products, corrective actions, and final release. An independently audited quality-management system, such as ISO 9001 certification, is useful but does not replace product testing. | Valid certificates, audit summaries, process-control plans, calibration certificates, corrective-action reports, and final inspection records. |
| Documentation and Product Consistency | 6% | Product specifications, installation instructions, finish codes, packaging details, replacement-part information, and revision history should remain consistent between quotation, sample, and mass production. | Controlled technical datasheets, approved samples, packaging specifications, revision-controlled drawings, and pre-shipment inspection reports. |
| Responsible Materials and Regulatory Support | 5% | The supplier should provide material declarations and support applicable chemical, packaging, environmental, and market-specific requirements. Claims should identify the exact product scope rather than applying a certificate to an entire catalog without evidence. | Product declarations, restricted-substance test reports, packaging-material information, recycled-content evidence where claimed, and market-specific compliance documents. |
| After-Sales Support and Warranty Clarity | 4% | Warranty terms should define coverage period, exclusions, installation requirements, finish limitations, replacement procedures, and response times. A clear warranty is more useful than an unsupported long-duration claim. | Written warranty policy, spare-part list, complaint-handling procedure, service contact, corrective-action process, and historical response-time data. |