Steel quality color: Listen to the sound. With your fingers or with a hard object hitting the color plate steel plant engineering, materials color plate steel plant if the poor prices, to the sound of the issue is boring steel plant installation, metal sound obvious, material better color steel sheet metal is relatively loud sound, crisp. Is there a test of the relevant departments. Color steel sandwich material: rock wool color steel series color plate is the strongest performance of a new type of fire-resistant fire protection board. By the natural rock, iron blast furnace slag and other high temperature melt into yarn, then after curing. Rock wool color steel clean room two fire protection requirements accord, indoor ceiling, the best structure housing construction activity decorative plates. It has a fire resistance of 600 ℃, fire rating to A-level. There is polystyrene polyurethane can not be compared. Its core material is not burning wool. Steel plant installation of Steel plant, provided by Prudential Steel Ltd. Henan Hengfeng Steel Works. Henan Hengfeng Steel Works Ltd. (www.ayhfgc.com) strong, credible, Anyang, Henan Province in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Prudential into the brilliant steel and you work for a better future!