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HG 20620-1997 related PDF English

HG 20620-1997 (HG20620-1997) & related versions
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HG 20620-1997EnglishRFQ ASK 9 days (Steel pipe flanges (American System)) HG 20620-1997 Obsolete HG 20620-1997

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Older Standard (superseded by this standard) HGJ 44��76-1991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