| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 7899-1987 | English | 439 |
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Regulators for gas cylinders used in welding cutting and allied processes
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GB/T 7899-1987
| Obsolete |
GB/T 7899-1987
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