| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| HG/T 3178-1988 | English | 879 |
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Days<=6
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(Urea corrosion resistant stainless steel tube high-pressure equipment - tube sheet welding procedure qualification and welder skills assessment)
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HG/T 3178-1988
| Obsolete |
HG/T 3178-1988
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