Sigma Batch — Certificates

"Supplier shall provide an EN 10204 Type 3.1 Sigma batch certificate for each unique heat number supplied. The certificate must include actual chemical and mechanical test results. No certificate, no release for shipment. Digital certificates are acceptable provided they are issued directly from the mill’s secure server."

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It’s a rare artifact where statistical significance meets legal significance . "Supplier shall provide an EN 10204 Type 3

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