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| Chinese National Standard List: Standardization and quality management |
| Title | Standard No. | Implemented On |
| Quality evaluation implementation rules of electro-mechanical engineering of liaoning highways | DB21/T 2779-2017 | 2017-4-20 |
| Drawing and design document of product -- Standardization examination | TB/T 2002-2004 | 2004-8-1 |
| Operation Standard - Subgrade Operation | TB/T 2658.6-1995 | 1996-6-1 |
| Operation Standard - Forestry Operation | TB/T 2658.7-1995 | 1996-6-1 |
| Operation Standard - Railway Medium Maintenance Operation | TB/T 2658.4-1995 | 1996-6-1 |
| Operation Standard - Railway Overhaul Operation | TB/T 2658.3-1995 | 1996-6-1 |
| Operation Standard - Quarrying Operation | TB/T 2658.8-1995 | 1996-6-1 |
| Operation Standard - Steel Rail Ultrasonic Testing Operation | TB/T 2658.9-1995 | 1996-6-1 |
| Operation Standard - Protection Worker Operation | TB/T 2658.1-1995 | 1996-6-1 |
| Operation Standard - Jointless Track Overhaul/Medium Maintenance Operation | TB/T 2658.2-1995 | 1996-6-1 |
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