galvalume steel coil/gl 1.ISO9001 2.ASTM A792, JIS G3321 JIS ... untreated Unoile/ oiled ,TENSION LEVELLERT SKIN PASS anti-fingerprint/Un-anti-fingerprint, coating… Mini/regular/big/zero spangle, , ... anti-fingerprint/Unanti-fingerprint, coating ,different colors…etc oiled / Un-oiled, bright oiled APPLICATION Guardrails, ventilation ducts, gutters and ... , high-strength-steel plate galvalume steel coil/gl