GB/T 17116.3-2018管道支吊架第3部分:中间连接件和建筑结构连接件国家标准
英文:Pipe supports and hangers—Part 3:Middle connection attachments and building structure attachments GB/T 17116.3-2018介绍...
英文:Pipe supports and hangers—Part 3:Middle connection attachments and building structure attachments GB/T 17116.3-2018介绍...