... Galvanized/prepaint 4OEM is acceptable 5Usage:steel structure building C /Z Purlin Heavy load bearing capacity: High strength and high ... Manufactured from high tensile galvanized steel.2) Despotic C&Z section steel, Z section steel is roll-formed from galvanized steel, ... Jiangsu,China Finished:black iron,HDMain ProductsZ steel structure,C shaped steel stucture,channel steel,angle steel,deformed steel ...