Venkovnch our more properties of steel parapets Lacquered steel galvanized sheet with release fli Tlouťka 0.75 mm, galvanized steel 275 g / m2 lacquer 25 u m Colored standard made bl RAL 9010, brown RAL 8019, zl. flie oak, anthracite RAL 7016 Front nose 25 mm, 23-25 ​​mm rear face with holes Zruka on exterior steel parapets are 2 years, 10 years on the boards