The company provides production and construction of light steel structure, large-span arch Cai Gang, the door-frame roof of the building envelope and the production and installation.
本公司主要提供轻钢结构制作与施工，大跨度彩钢拱型、门式框架建筑的屋面及围护结构的制作和安装。
2
The plastic envelope must be kept intact in the course of installation and usage.
在安装使用过程中，不能把塑封套弄破。
3
Replace this manual inside the envelope bag when installation is complete.