... .Length: 6000mm 4.Certification:ISO9001:2000 SGS Nickel Bar, Nicke Rod Material: N4 N6 N200 N201 Standard AISI , JIS , ER , GB ... export TechniqueHot rolled, cold drawn, forgedCategory 1. Round bar 1). Hot rolled flat steel :3*20--20*1502). Cold rolled bright ... international standards of ASTM , AISI , JIS , ER , GB ,etc. nickel rod usd on the chemical industry equipment