China 'GB/T 21940-2008
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 21940-2008
Earth-moving machinery - Cutting edges used on tractor-dozers, graders and scrapers - Principal shapes and basic dimensions 土方机械 推土机、平地机和铲运机用刀片 主要形状和基本尺寸
Issued Date:2008-06-03
Implemented Date:2009-01-01
Issued by:
The Standardization Administration of the People's Republic of China