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Mandatory Standards
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Followings are being listed as the products/ materials requiring mandatory "NS quality certification mark".
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| S.No. | Product/Material | NS Mark |
| 1. | Deformed steel bars and wires for concrete reinforcement | 191-2046 |
| 2. | Ordinary portland cement | 49-2041 |
| 3. | G.I.Wire | 163,169-2046 |
| 4. | Dry cell battery | 280-2049 |
| 5. | Galvanized corrugated sheet | 141-2043 |
| 6. | Code of Practice for LPG cylinders | 376-2053 |
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