... 2000, CE 2.Materials: Q235 & Q345 3.Used for a long time 4.Simple and convenient 1) Design according to customer ... materails: H beam/C purlin/Z purlin/sandwich panel/ corrugated steel sheet 6)Life: Over 50 years 7)Nice appearance, ... grades, etc pre engineered steel buildings to:North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Steel structure workshop