Advantages:
1.360° occlusion---Upright lock seam 820 roofing system.
2.360° vertical fastening seam, excellent waterproof and airtight.
3.No screw penetration on the surface of the system.
4.The unique sliding-sliding bracket makes the system have perfect thermal expansion and contraction compensation function.
5.Processed equipment cabinets to ensure accurate on-site suppression of large projects.