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29-inch 10-Rib Manual Umbrella, 48.4" Span, Model AJ-3420
Brand: Generic / OEM
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Audited BOM: 8 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 low mechanical resistance of galvanized steel ribs (ENG-001) leads to breakage or warping under moderate winds, resulting in RMAs (RMA-001) and negative reviews (REV-001, REV-005).
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