Seamlock 473 H75 is a kind of roofing sheet made of non-ferrous metal with rich colors,distance between 2 high ribs is 473mm, it is the profile with the hightest ribs of Dong A ( h - 75mm ), suiable for industrial roof with large aperture of over 20m, low roof slope and build in heavy rain location.

Advantage :

+ Horizontal stiff reduce the free with, strngthening for the steel sheet.

+ The connection between the roof and the sheet with seam clop ensures that the corrugated sheet will not warp when the ambient tempearature changes. Especially when there are large whirlwinds, the roof is not unroofed.

+ None direct screws type ( the roof does not age from the scre posstion due to impact of the environtmant )