... overlap lengthways is avoided.3. Materials as prepainted steel sheets, galvanized steel sheets, galvalume (Al-Zn coated sheets) are ... rolled, galvanized, galvalume, galvaneal, electric galvanized, silicon steel, pre-painted steel sheet in coils and so on, having more ... close relationship with most domestic steel plants, such as Baosteel, Angang Steel, Bengang Steel, Baotou Steel, Wisco and so on. ...