GB/T 7121.1-2008 农林轮式拖拉机防护装置强度试验方法和验收条件 第1部分:后置式静态试验方法 The strength testing method and accepting conditions of the rear-mounted protective structures on wheeled agricultural and forestry tractors - Part 1: Static testing method of rear mounted ROPS
The strength testing method and accepting conditions of the rear-mounted protective structures on wheeled agricultural and forestry tractors - Part 1: Static testing method of rear mounted ROPS