... TOCT, GB, ABNTAvailable Size: max OD 4500mm, thickness150mm.In early 2004, Wanbao special steel has established QMS according to ISO9000 ... rod, stainless steel.The product one hand are applied in machine facture, petrochemical, automobile,Communication, transportation, medical- ... health and on the other hand, in national defence, army, aerospace and electronic information.ADD: ...