GB/T 31052.2-2016
Lifting appliances—Code of inspection and maintenance—Part 2: Mobile cranes 起重机械 检查与维护规程 第2部分:流动式起重机 |
GB/T 4269.2-2016
Tractors, machinery for agriculture and forestry, powered lawn and garden equipment—Symbols for operator controls and other displays—Part 2: Symbols for agricultural tractors and machinery 农林拖拉机和机械、草坪和园艺动力机械 操作者操纵机构和其他显示装置用符号 第2部分:农用拖拉机和机械用符号 |
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