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| Polytechnic University of Puerto Rico--Graduate students--Research (5) |
| Six sigma (Quality control standard) (5) |
| Waste minimization (5) |
| Lean manufacturing (3) |
| Polytechnic University of Puerto Rico--Graduate students--Posters (2) |
| Flexography (1) |
| Medical instruments and apparatus industry (1) |
| Packaging (1) |
| Quality control--Optical methods (1) |