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JB 4420-1989 English PDF

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JB 4420-1989EnglishRFQ ASK 6 days [Need to translate] (Boiler welding procedure qualification) Obsolete JB 4420-1989

PDF similar to JB 4420-1989


Standard similar to JB 4420-1989

GB/T 16507.2   GB/T 16507.1   GB/T 12145   

Basic data

Standard ID JB 4420-1989 (JB4420-1989)
Description (Translated English) (Boiler welding procedure qualification)
Sector / Industry Mechanical & Machinery Industry Standard
Classification of Chinese Standard J98
Word Count Estimation 30,383
Date of Issue 3/27/1989
Date of Implementation 1/1/1990