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Portable Handheld Sewing Machine LK-8100
Brand: Generic / OEM
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Audited BOM: 7 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 needle mechanism (COMP-002) fails prematurely (ENG-001), leading to jams and RMAs (RMA-001), which is reflected in negative reviews (REV-001).
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