Arts & Crafts > Art Supplies > Pens & Markers > Stamp Pens
18 Color Acrylic Stamp Pen, 0.08-0.16" (2-4mm) Tip, Model KA-B7
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 low-quality stamp mechanism (ENG-001) causes leaks (RMA-001) and stamping failures, leading to negative reviews (REV-001, REV-004).
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