GB/T 19930.2-2014
土方机械 挖掘机保护结构的实验室试验和性能要求 第2部分:6t以上挖掘机的滚翻保护结构(ROPS)
Earth-moving machinery.Laboratory tests and performance requirements for protective structures of excavators.Part 2:Roll-over protective structures (ROPS) for excavators of over 6 t
GBT19930.2-2014, GB19930.2-2014