GB/T 3098.23-2020紧固件机械性能M42~M72螺栓、螺钉和螺柱标准
英文:Mechanical properties of fasteners—M42~M72 bolts, screws and studs GB/T 3098.23-2020介绍: 国家标准《紧固件机械性能 M42~M72螺栓、螺钉和螺柱》...
英文:Mechanical properties of fasteners—M42~M72 bolts, screws and studs GB/T 3098.23-2020介绍: 国家标准《紧固件机械性能 M42~M72螺栓、螺钉和螺柱》...