GB/T 9125.2-2020
Fasteners for steel pipe flange joints—Part 2:Class designated 钢制管法兰连接用紧固件 第2部分:Class系列 |
GB/T 39041-2020
Carbon steel-fiber reinforced plastic clad bars for reinforcement concrete 钢筋混凝土用碳素钢-纤维增强复合材料复合钢筋 |
GB/T 39037.2-2020
Lashing and securing arrangements on road vehicles for sea transportation on Ro/Ro ships—General requirements—Part 2: Semi-trailers 用于海上滚装船运输的道路车辆的系固点与系固设施布置 通用要求 第2部分:半挂车 |
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