[国外标准] BS EN 12873-4-2006 Influence of materials on water intended for human consumption. Influence due to
[国外标准] BS EN 12873-3-2006 Influence of materials on water intended for human consumption. Influence due to
[国家标准] GB/T 12873-1991 机床夹具零件及部件 薄壁钻套
[机械行业标准] JB/T 12873-2016 非阻燃双壁聚烯烃热收缩管