China National Standard Collection. 309: GB19531~19564: Issued in 2004

Author: Editorial Office of the Chief Editor of China Standard Press
Publisher:
Publish Date: 2005-05-01
Features: "China National Standard Collection" is a large-scale, comprehensive collection of national standards. Since 1983, it has been published in both hardcover and paperback formats, issued in installments according to the sequential number of national standards.