Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Related Standard | Status | PDF |
QB 1571-1992 | English | 519 |
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3 days [Need to translate]
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Technical Specification for Labor Safety of the Well and Rock Salt Industry
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QB 1571-1992
| Obsolete |
QB 1571-1992
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