| In Petrobras, they are convinced that queries, suggestions, and complaints are the most valuable tool to improve the quality of goods and services. To achieve this objective, Petrobras developed two channels that reassert the corporate principle of transparency. | |
| Plastic Materials - Innova Polystyrene (8) | Generics - PS (GPPS) (4) - PS (HIPS) (3) - PS (MIPS) (1) |
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