GB/T 38874.4-2020农林拖拉机和机械控制系统安全相关部件第4部分:生产、运行、修改与支持规程标准
英文:Tractors and machinery for agriculture and forestry—Safety-related parts of control systems—Part 4:Production,operati...
英文:Tractors and machinery for agriculture and forestry—Safety-related parts of control systems—Part 4:Production,operati...