HG/T21573.2-95 large diameter nut
Standard Classification: Performance Standard System: Chemical Industry (HG) Shape Classification: Detailed Description: This standard specifies the structural dimensions and technical requirements for large straight nuts for flange and manhole flange connection of pressure vessel equipment. Nut types are R type, H type, HR type, HI type. Stud surface phosphating treatment.
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Standard Classification: |
Performance criteria |
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standard system: |
Chemical (HG) |
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Shape classification: |
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Detailed Description: |
The standard specifies the structural dimensions and technical requirements of large straight nuts for pressure vessel equipment flange and manhole flange connection. Type of nut:RType,HType,HRType,HIType. Stud surface phosphating treatment. |
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