| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 20590-1997 | English | 719 |
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Design technical regulation for the treatment of wastewater from sulphuric acid and phosphatic fertilizer industries
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HG/T 20590-1997
| Obsolete |
HG/T 20590-1997
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