china color galvanized sheet and panel for wall and roof
The purlin system connects the main structure and the roof ( wall) system, is an important part of the whole building system.
There are two types of Z-type and C-type cross-section.
Raw materials are hot-dip galvanized(.0 Z275g / ㎡) , Q345 high-strength strip, high standard hot dip galvanized treatment, excellent anti-corrosion performance, computer numerical control drilling, high precision, with optimized cross-section design and continuous lap-joint design, to meet the long-span design requirements, safe and lightweight, easy installation.
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