A supplier material claim is only supported by a part-number-linked declaration, batch certificate and manufacturing traceability record; photos and statements alone are not enough.
Similar dimensions are a screening check only. Fitment, tolerance, revision and provenance still require model, serial number, old part number and measured evidence.
A practical guide for Tajikistan parts buyers on checking material declarations, batch-linked records and manufacturing evidence before accepting a replacement-part material claim.
Similar dimensions are a screening check only. This article explains drawing revision, datum, units, measurement method and tolerance source for road or hydropower equipment parts.