通信人家园

标题: 二建  [查看完整版帖子] [打印本页]

---

时间:  2024-5-31 19:54

作者: 18946570133     标题: 二建

严禁超载，严格机械检查，确保支腿稳定，起重臂杆仰角不超过78°，不小于45°

---

通信人家园 (https://www.txrjy.com/)

Powered by C114