gl pipe 1.ISO 9001 2.ASTM A653, JIS ... , ceiling suspension bars, shutter door rails. Auto parts, electrical appliances, refrigerator appliances, signs, automotive parts,vending machines, ... for pre-paint. structural use, roofing, commercial use …etc Electrical appliances, roofing, partitions. Factory buildings, elevator panels…etcSpecial applications: ... work . Galvanized steel sheets in coils gl pipe