Office Products > Office & School Supplies > Writing & Correction Supplies > Pencil Sharpeners
MAT-M15 Manual Desk Pencil Sharpener, Iron Frame, ABS Housing
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 crank handle shaft (COMP-004) wears prematurely due to lack of bearings and low-quality material (ENG-002), leading to jamming and subsequent RMA (RMA-001) and user complaints (REV-001).
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+4 additional failure modes & return complaint chains locked
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