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.
A practical guide for Tajikistan parts buyers on checking material declarations, batch-linked records and manufacturing evidence before accepting a replacement-part material claim.
A supplier statement is not enough. Demand a written material declaration, batch-linked records, and manufacturing evidence before accepting replacement parts for SANY equipment work.
How to separate material declaration, batch-linked records and manufacturing evidence when a supplier claims SANY replacement parts use a specified material.