| 1 | CHEMICAL- METALS & ALLOYS | Stainless Steel | Carbon | IS:228 P-1: 1987 |
| 2 | CHEMICAL- METALS & ALLOYS | Stainless Steel | Manganese | IS:228 P-2: 1987 |
| 3 | CHEMICAL- METALS & ALLOYS | Stainless Steel | Phosphorus | IS:228 P-3: 1987 |
| 4 | CHEMICAL- METALS & ALLOYS | Stainless Steel | Silicon | IS:228 P-8: 1989 |
| 5 | CHEMICAL- METALS & ALLOYS | Stainless Steel | Sulphur | IS:228 P-9: 1989 |
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