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120ml (4.1 oz) Ultrasonic Aroma Diffuser Humidifier with LED EL-5503
Brand: Generic / OEM
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Audited BOM: 10 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
Low transducer quality (ENG-001) leads to premature product failure (RMA-001), resulting in customer dissatisfaction (REV-001).
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