QB/T 2667.1-2004
Buried Multi-hole plastics for communication Part 1: Unplasticized polyvinyl chloride (PVC-U) multi-hole pipes 埋地通信用多孔一体塑料管材 第1部分:硬聚氯乙烯(PVC-U)多孔一体管材 |
QB/T 2667.2-2004
Buried Multi-hole plastics pipes for communication Part 2: Polyethylene (PE) multi-hole pipes 埋地通信用多孔一体塑料管材 第2部分:聚乙烯(PE)多孔一体管材 |
QB/T 2671-2004
Define, Making and biodegradable requirement of biodegradable plastic sheet 生物分解塑料片材定义、标志和生物分解性能要求 |
GB/T 13595-2004
Tobacco and tobacco products--DeterMination of pyrethroids,organophosphorus and nitrogen-containing pesticides residues 烟草及烟草制品 拟除虫菊酯杀虫剂、有机磷杀虫剂、含氮农药残留量的测定 |
GB 16895.22-2004
Electrical instal lations of buildings--Part 5-53:Selection and erection of electrical equipMent isolation,switching and control--Section 534:Devices for protection against overvoltages 建筑物电气装置 第5-53部分:电气设备的选择和安装-隔离、开关和控制设备 第534节:过电压保护电器 |
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