emergency coupling screw的意思|示意

美 / / 英 / /

应急连接螺钉

应急连接螺钉 ... 应急连接螺钉 emergency coupling screw 装合螺钉，连接螺钉 attachmentscrew 螺钉连接 screw fastening ...

应急联结螺钉 ... 应急锚地：emergency anchorage 应急联结螺钉：emergency coupling screw 应急连接螺钉：emergency coupling screw ...