GB/T 21956.4-2009
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 21956.4-2009
The strength testing method and accepting condition of protective structures on narrow-track wheeled agricultural and forestry tractors - Part 4: Dynamic testing method of rear mounted ROPS 农林窄轮距轮式拖拉机防护装置强度试验方法和验收条件 第4部分:后置式动态试验方法
Issued Date:2009-03-05
Implemented Date:2009-10-01
Issued by:
The Standardization Administration of the People's Republic of China