Material Traceability is required by Xometry for completion of a job. The document package must include the Material test report (material cert) from the manufacturer of the raw material and record showing each transfer of ownership/sale until the material has reached the final part manufacturer (pack slips). We also require that partner’s C of C must be included in the letterhead. Mill Test Reports should always include heat lot number, inspector’s signature, as well as the chemical and physical analysis. The material specs on the Material Test Report must always match the material specs outlined in the customer’s drawing.