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JY 221-1987 English PDF

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JY 221-1987EnglishRFQ ASK 3 days [Need to translate] Newtonrings Obsolete JY 221-1987

PDF similar to JY 221-1987


Standard similar to JY 221-1987

JY/T 0587   GB/T 20394   GB 17498.6   JY/T 0221   JY/T 0408   JY/T 0407   

Basic data

Standard ID JY 221-1987 (JY221-1987)
Description (Translated English) Newtonrings
Sector / Industry Education Industry Standard
Classification of Chinese Standard Y54