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Database: 189759 (22 May 2022)
HG 20620-1997
HG 20620-1997_English: PDF (HG20620-1997)
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HG 20620-1997
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(Steel pipe flanges (American System))
HG 20620-1997
Obsolete
HG 20620-1997
BASIC DATA
Standard ID
HG 20620-1997 (HG20620-1997)
Description (Translated English)
(Steel pipe flanges (American System))
Sector / Industry
Chemical Industry Industry Standard
Classification of Chinese Standard
J15
Classification of International Standard
23.040.60
Word Count Estimation
31,377
Date of Issue
1997/11/27
Date of Implementation
1998/2/1
Older Standard (superseded by this standard)
HGJ 44��76-1991
Adopted Standard
ISO 7005-1-1992, NEQ; ANSI B16.5-1988, NEQ
Regulation (derived from)
Industry-Science [2009] No. 27