Ask for batch-linked material, manufacturing, heat-treatment and test records tied to the applicable drawing or purchasing specification before accepting material equivalence.
Dimensional similarity alone cannot confirm drawing revision, tolerance, reference surfaces, material, heat treatment, seal design or load-path suitability for a SANY excavator.
Ask for batch-linked material, manufacturing, heat-treatment, and test evidence before accepting a supplier's same-material claim for undercarriage parts in abrasive mining service.
Similar dimensions alone are not acceptance evidence; a parts decision requires drawing revision, datum surfaces, units, measurement method, tolerances and machine-specific fitment checks.
Similar dimensions are not enough; verify drawing revision, reference surfaces, units, method, tolerances and machine-specific part identity before accepting replacement track rollers.
Similar dimensions are only a screening check. Acceptance requires verified machine identity, catalogue revision, drawing reference surfaces, tolerances and independent observation.