[固定建筑物] 脚手架管连接 scaffold tube: 脚手管子; 脚手架管steel tube scaffold couplers: 钢管脚手架扣件tube and coupler scaffold: 有连接钩的管形脚手架coupling tube: 耦合管tube coupling: 管节下载手机词典可随时随地查词查翻译