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12.8 oz (380ml) Stainless Steel Thermal Flask AK-3804
Brand: Generic / OEM
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Audited BOM: 6 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The failure in vacuum quality (ENG-001) directly leads to the loss of temperature retention capacity (RMA-001), which is corroborated by consumer reviews (REV-001, REV-005).
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