增城工厂围墙隔离栅 防爬栏杆 韶关学校铁艺护栏订做
¥：23.00
增城工厂围墙隔离栅 防爬栏杆 韶关学校铁艺护栏订做
Zengcheng factory fence fence anti climbing railing Shaoguan school iron guardrail custom made
将上下立柱钢管连接在一起。
Connect the upper and lower column steel pipes together.
它通过对下立柱的加强，即使用套管或者其他工艺来防止下部护栏立柱的变形。
It can prevent the deformation of the lower guardrail column by strengthening the lower column, that is, using casing or other technology.
