钢结构用高强度大六角头螺栓、大六角螺母、垫圈技术条件
Specifications ofhigh strength bolts with large hexagon head，large hexagon nuts，plain washers for steel structures
标准状态
发布于：1991-04-22
实施于：1992-01-01
已废止
基本信息
内容预览
Specifications ofhigh strength bolts with large hexagon head，large hexagon nuts，plain washers for steel structures